25 Most Common WordPress Problems and How to Fix Them

WordPress is the world’s most popular website platform, powering millions of blogs, business websites, and online stores. While it’s easy to use, every WordPress website will eventually run into problems. A plugin update might break your site, a server issue could make your pages unavailable, or a simple setting may prevent visitors from accessing your content.

Fortunately, most WordPress problems are easier to fix than they appear. Once you understand what caused the issue, you can often restore your website in just a few minutes.

This guide covers the 25 most common WordPress problems along with beginner-friendly, step-by-step solutions that anyone can follow.

Before You Start

Before making any changes, follow these safety tips:

• Create a full website backup.
• Note any recent changes, such as plugin installations or updates.
• If possible, test fixes on a staging website first.
• Keep your hosting login details handy.

1. Error Establishing a Database Connection

One of the most common WordPress errors is “Error Establishing a Database Connection.“ This message appears when WordPress cannot connect to your MySQL database. Since your database stores your posts, pages, users, and settings, your website cannot load without it.

This problem usually occurs because of incorrect database credentials, a corrupted database, a crashed MySQL server, or problems with your web hosting.

How to Fix It

Step 1: Open your website’s wp-config.php file.

Step 2: Check the following information carefully:

• Database Name
• Database Username
• Database Password
• Database Host

Make sure they exactly match the database information provided by your hosting company.

Step 3: Log in to your hosting control panel and verify that your MySQL database server is running.

Step 4: If your database is corrupted, enable WordPress Database Repair by adding this line to wp-config.php:

define('WP_ALLOW_REPAIR', true);

Then visit:

yourwebsite.com/wp-admin/maint/repair.php

Choose Repair Database.

Step 5: Remove the repair line from wp-config.php after the repair is complete.

How to Prevent This Problem

• Keep regular website backups.
• Never edit wp-config.php unless necessary.
• Use reliable web hosting.
• Monitor your database health regularly.

2. White Screen of Death (WSOD)

The White Screen of Death is exactly what it sounds like—your website displays a completely blank white page without any error message. In most cases, this happens because WordPress encounters a fatal PHP error before it can load your website.

The issue is commonly caused by plugin conflicts, theme problems, exhausted PHP memory, or coding mistakes.

How to Fix It

Step 1: Access your website using FTP or your hosting File Manager.

Step 2: Rename the plugins folder to something like:

plugins-disabled

If your website starts working, one of your plugins is causing the problem.

Step 3: Rename the folder back to plugins.

Step 4: Activate plugins one by one until the issue returns.

Step 5: If plugins aren’t responsible, switch to a default WordPress theme such as Twenty Twenty-Six.

Step 6: Increase your PHP memory limit by editing wp-config.php:

define('WP_MEMORY_LIMIT', '256M');

How to Prevent This Problem

• Install plugins only from trusted developers.
• Update themes regularly.
• Test updates on a staging website.
• Remove unused plugins.

3. 500 Internal Server Error

The 500 Internal Server Error is one of the most confusing errors because it doesn’t explain what’s actually wrong. It simply means something on the server prevented WordPress from loading correctly.

This error is usually caused by a corrupted .htaccess file, plugin conflicts, exhausted PHP memory, or incorrect server settings.

How to Fix It

Step 1: Connect to your website using FTP.

Step 2: Rename:

.htaccess

to

.htaccess-old

Step 3: Refresh your website.

If it works, log in to WordPress.

Step 4: Go to:

Settings → Permalinks

Click Save Changes without changing anything.

WordPress will automatically create a new .htaccess file.

Step 5: If the problem continues:

• Disable all plugins.
• Increase PHP memory.
• Contact your hosting provider.

How to Prevent This Problem

• Keep WordPress updated.
• Avoid editing server files unless necessary.
• Use quality plugins.
• Monitor server resources.

4. WordPress Login Page Keeps Refreshing

Sometimes you’ll enter the correct username and password, click Log In, and WordPress simply refreshes the login page without logging you in.

This issue is usually caused by cookies, cache problems, incorrect website URLs, or plugin conflicts.

How to Fix It

Step 1: Clear your browser cookies and cache.

Step 2: Open another browser or Incognito Mode.

Step 3: Disable caching plugins.

Step 4: Verify your Site URL and WordPress URL.

Both should match exactly.

Step 5: Rename your plugins folder if the problem continues.

How to Prevent This Problem

• Don’t manually change your website URL.
• Keep your browser updated.
• Use reliable caching plugins.
• Avoid conflicting login plugins.

5. Slow WordPress Website

A slow website creates a poor user experience and can reduce your search engine rankings. Visitors are more likely to leave if pages take too long to load.

The most common causes include large images, slow hosting, too many plugins, poor caching, and outdated PHP versions.

How to Fix It

Step 1: Test your website speed using Google PageSpeed Insights.

Step 2: Compress all images before uploading them.

Step 3: Install a caching plugin.

Step 4: Enable GZIP compression.

Step 5: Use a Content Delivery Network (CDN).

Step 6: Remove unnecessary plugins.

Step 7: Upgrade to the latest supported PHP version.

How to Prevent This Problem

• Optimize images.
• Choose fast hosting.
• Keep plugins to a minimum.
• Regularly monitor website performance.

6. Plugin Conflicts

Plugins are one of the biggest reasons WordPress websites stop working properly. Since plugins are developed by different companies, they don’t always work well together. A conflict may occur after installing a new plugin or updating an existing one. You might notice broken layouts, missing features, error messages, or even a completely blank website.

Fortunately, plugin conflicts are usually easy to identify if you troubleshoot them one step at a time.

How to Fix It

Step 1: Log in to your WordPress dashboard.

Step 2: Go to Plugins → Installed Plugins.

Step 3: Deactivate all plugins.

Step 4: Check whether your website is working normally.

Step 5: If the issue is fixed, activate one plugin at a time.

Step 6: Refresh your website after activating each plugin.

Step 7: When the problem returns, you’ve found the conflicting plugin.

Step 8: Update the plugin to the latest version.

Step 9: If no update is available, replace it with a similar plugin or contact the plugin developer.

How to Prevent This Problem

• Install plugins only from trusted developers.
• Avoid installing multiple plugins that perform the same task.
• Keep plugins updated.
• Remove plugins you no longer use.
• Test plugin updates on a staging website first.

7. WordPress Stuck in Maintenance Mode

Whenever you update WordPress, a plugin, or a theme, WordPress briefly enters maintenance mode. Normally, this only lasts a few seconds. However, if the update is interrupted because of a browser crash, internet disconnection, or server timeout, your website may remain stuck displaying the message:

“Briefly unavailable for scheduled maintenance. Check back in a minute.”

This problem doesn’t usually damage your website, and fixing it only takes a minute.

How to Fix It

Step 1: Open your hosting File Manager or connect using FTP.

Step 2: Go to your WordPress root folder.

Step 3: Find the hidden file named:

.maintenance

Step 4: Delete the file.

Step 5: Refresh your website.

Step 6: If the problem continues, clear your browser cache and reload the page.

Step 7: Try running the interrupted update again.

How to Prevent This Problem

• Never close your browser while updates are running.
• Wait until WordPress finishes updating.
• Update plugins one at a time if you have many installed.
• Always create a backup before major updates.

8. Images Not Uploading

Images are an important part of every website. If WordPress suddenly refuses to upload images or displays an HTTP Error, the issue is usually related to your server configuration, file permissions, PHP memory limit, or image format.

Sometimes the upload appears successful, but the image doesn’t appear in the Media Library.

How to Fix It

Step 1: Refresh the page and try uploading the image again.

Step 2: Make sure the image format is supported (JPG, PNG, WebP, GIF).

Step 3: Reduce the image size if it’s very large.

Step 4: Increase your PHP memory limit.

Step 5: Check that the uploads folder has the correct permissions (usually 755 for folders).

Step 6: Temporarily disable image optimization or security plugins.

Step 7: Contact your hosting provider if uploads still fail.

How to Prevent This Problem

• Compress images before uploading.
• Use modern image formats like WebP.
• Keep WordPress updated.
• Use quality hosting with enough server resources.

9. 404 Error on Posts and Pages

A 404 error means WordPress cannot find the page you’re trying to visit. In many cases, your homepage works perfectly, but individual posts or pages display a 404 Not Found error. This usually happens after changing permalink settings, migrating your website, or modifying the .htaccess file.

The good news is that this problem is usually fixed in less than a minute.

How to Fix It

Step 1: Log in to your WordPress dashboard.

Step 2: Go to Settings → Permalinks.

Step 3: Without changing any settings, click Save Changes.

This forces WordPress to rebuild your permalink structure.

Step 4: Visit one of your posts again.

Step 5: If the problem continues, check whether your .htaccess file exists.

Step 6: Regenerate the .htaccess file if necessary.

Step 7: Disable recently installed plugins that manage redirects or permalinks.

How to Prevent This Problem

• Avoid manually editing permalink settings.
• Check your website after changing URLs.
• Keep a backup of your .htaccess file.
• Use trusted redirect plugins.

10. WordPress Not Sending Emails

Many WordPress users discover this problem only after customers stop receiving contact form messages or password reset emails. By default, WordPress uses PHP Mail, which many web hosting providers restrict or block.

The most reliable solution is to use SMTP instead of the default mail function.

How to Fix It

Step 1: Install an SMTP plugin such as WP Mail SMTP.

Step 2: Connect it to your email provider (such as Gmail, Outlook, SendGrid, or Amazon SES).

Step 3: Enter your SMTP credentials.

Step 4: Send a test email using the plugin.

Step 5: Check whether the email arrives successfully.

Step 6: If emails still fail, contact your hosting provider to verify SMTP connections aren’t blocked.

How to Prevent This Problem

• Use SMTP instead of PHP Mail.
• Test contact forms regularly.
• Monitor email delivery logs.
• Use a reliable email service for transactional emails.

11. WordPress Critical Error

One of the most alarming messages you can see is “There has been a critical error on this website.” This usually happens after installing a faulty plugin, updating a theme, or making changes to your website’s code. Instead of loading your site, WordPress stops running to prevent further damage.

The error may also be caused by outdated PHP versions, corrupted files, or exhausted server memory.

How to Fix It

Step 1: Check your email inbox for the recovery email sent by WordPress.

Step 2: Click the recovery link provided in the email.

Step 3: Log in and deactivate the plugin or theme causing the issue.

Step 4: If you didn’t receive an email, rename the plugins folder using FTP.

Step 5: Switch to a default WordPress theme if necessary.

Step 6: Enable WordPress Debug Mode to identify the exact error.

Step 7: Update PHP to the latest supported version.

How to Prevent This Problem

• Update plugins carefully.
• Avoid editing core WordPress files.
• Test changes on a staging site.
• Always keep regular backups.

12. 403 Forbidden Error

The 403 Forbidden error means your web server understands the request but refuses to allow access. It often appears when visiting your website, wp-admin, or specific pages.

Incorrect file permissions, security plugins, corrupted .htaccess files, or firewall rules are usually responsible.

How to Fix It

Step 1: Clear your browser cache.

Step 2: Disable your security plugin temporarily.

Step 3: Reset file permissions.

• Folders: 755
• Files: 644

Step 4: Rename your .htaccess file.

Step 5: Visit your website again.

Step 6: Generate a new .htaccess file by saving your Permalink settings.

Step 7: Contact your hosting provider if the error continues.

How to Prevent This Problem

• Don’t change file permissions unnecessarily.
• Use trusted security plugins.
• Keep your firewall properly configured.
• Regularly review security settings.

13. 502 Bad Gateway Error

A 502 Bad Gateway error appears when one server receives an invalid response from another server. This commonly happens on websites using Cloudflare, reverse proxies, or overloaded hosting servers.

The issue is usually temporary but may also indicate server configuration problems.

How to Fix It

Step 1: Refresh the page after a few minutes.

Step 2: Clear your browser cache.

Step 3: Clear your website cache.

Step 4: Restart PHP from your hosting control panel if available.

Step 5: Disable Cloudflare temporarily to test the origin server.

Step 6: Disable recently installed plugins.

Step 7: Contact your hosting provider to check server logs.

How to Prevent This Problem

• Use quality hosting.
• Monitor server performance.
• Keep PHP updated.
• Avoid overloading your server.

14. 503 Service Unavailable

The 503 Service Unavailable error means your server is temporarily unable to process requests. Unlike a 404 error, the website still exists, but the server cannot handle visitors.

Heavy traffic, maintenance, plugin failures, or exhausted server resources commonly trigger this problem.

How to Fix It

Step 1: Wait a few minutes and refresh the page.

Step 2: Disable all plugins.

Step 3: Increase PHP memory.

Step 4: Check whether your hosting provider is performing maintenance.

Step 5: Review server resource usage.

Step 6: Enable Debug Mode to identify PHP errors.

Step 7: Upgrade your hosting plan if resources are constantly exhausted.

How to Prevent This Problem

• Monitor CPU and RAM usage.
• Use caching.
• Optimize large websites.
• Upgrade hosting before reaching resource limits.

15. WordPress Memory Exhausted Error

When WordPress runs out of available PHP memory, you’ll often see a message similar to:

“Allowed memory size exhausted.”

This usually happens on websites using many plugins, page builders, or WooCommerce.

How to Fix It

Step 1: Open wp-config.php.

Step 2: Add or edit:

define('WP_MEMORY_LIMIT', '256M');

Step 3: Save the file.

Step 4: Refresh your website.

Step 5: If the error continues, increase the PHP memory limit through your hosting control panel.

Step 6: Remove unnecessary plugins.

Step 7: Contact your host if memory cannot be increased.

How to Prevent This Problem

• Avoid unnecessary plugins.
• Optimize your website regularly.
• Upgrade hosting if needed.
• Keep themes lightweight.

16. WordPress Stuck in Maintenance During Update

Sometimes a plugin or theme update freezes before completing. As a result, WordPress becomes stuck halfway through the update process.

Unlike normal maintenance mode, the update never finishes.

How to Fix It

Step 1: Delete the .maintenance file.

Step 2: Clear your browser cache.

Step 3: Check whether WordPress loads normally.

Step 4: Update the plugin again.

Step 5: If the update keeps failing, reinstall the plugin manually.

How to Prevent This Problem

• Never refresh your browser during updates.
• Update one plugin at a time.
• Use a stable internet connection.

17. SSL Certificate Errors

An SSL certificate encrypts the connection between your website and visitors. If something goes wrong, browsers may display messages such as “Your connection is not private” or “SSL Certificate Error.”

This can happen because the certificate has expired, HTTPS is configured incorrectly, or mixed content is loading over HTTP.

How to Fix It

Step 1: Check whether your SSL certificate has expired.

Step 2: Renew the certificate if necessary.

Step 3: Update both WordPress Address and Site Address to use https://.

Step 4: Install a plugin like Really Simple SSL if needed.

Step 5: Clear your browser and CDN cache.

Step 6: Scan your website for mixed-content errors.

How to Prevent This Problem

• Renew SSL certificates before they expire.
• Force HTTPS across your website.
• Monitor SSL status regularly.

18. Automatic Updates Failed

Automatic updates help keep WordPress secure, but sometimes updates fail because of file permission issues, insufficient disk space, or interrupted server connections.

How to Fix It

Step 1: Check available disk space.

Step 2: Verify file permissions.

Step 3: Disable maintenance mode.

Step 4: Update WordPress manually.

Step 5: Update plugins individually.

Step 6: Contact your hosting provider if updates continue failing.

How to Prevent This Problem

• Maintain enough free disk space.
• Monitor update notifications.
• Keep file permissions correct.
• Back up before every update.

19. WordPress Website Redirecting to Another Website

If your WordPress website suddenly redirects visitors to a spam website, gambling page, or another unknown site, it’s usually a sign that your website has been hacked. In some cases, incorrect redirect settings or a faulty plugin can also cause unwanted redirects.

This issue should be fixed immediately because it can affect your visitors, damage your reputation, and even cause Google to blacklist your website.

How to Fix It

Step 1: Disable all plugins.

Step 2: Check your .htaccess file for suspicious redirect code.

Step 3: Inspect the wp-config.php file for unknown code.

Step 4: Scan your website using a security plugin like Wordfence or Sucuri.

Step 5: Remove recently installed plugins or themes.

Step 6: Change all WordPress, hosting, FTP, and database passwords.

Step 7: Restore a clean backup if your website has been compromised.

How to Prevent This Problem

• Use a security plugin.
• Enable Two-Factor Authentication (2FA).
• Keep WordPress updated.
• Avoid installing nulled plugins or themes.
• Schedule regular malware scans.

20. WordPress Website Hacked

Hackers constantly target WordPress websites using weak passwords, outdated plugins, and known security vulnerabilities. If your website has been hacked, you may notice new administrator accounts, spam content, unexpected pop-ups, or files you didn’t create.

Act quickly to prevent further damage.

How to Fix It

Step 1: Put your website into maintenance mode.

Step 2: Scan the website using a malware scanner.

Step 3: Delete malicious files.

Step 4: Remove unknown administrator accounts.

Step 5: Update WordPress, themes, and plugins.

Step 6: Change all passwords.

Step 7: Reinstall WordPress core files.

Step 8: Request Google Search Console to review your website if it has been blacklisted.

How to Prevent This Problem

• Use strong passwords.
• Enable 2FA.
• Install a firewall.
• Remove unused plugins.
• Back up your website daily.

21. WordPress Not Receiving Contact Form Messages

Many website owners discover this problem only after customers complain that nobody replied to their inquiry. Most contact forms fail because WordPress relies on the PHP Mail function, which many hosting providers limit or disable.

Using SMTP is the most reliable solution.

How to Fix It

Step 1: Install an SMTP plugin such as WP Mail SMTP.

Step 2: Connect it with Gmail, Outlook, SendGrid, Amazon SES, or another email provider.

Step 3: Verify your sender email address.

Step 4: Send a test email.

Step 5: Check your spam folder.

Step 6: Review the SMTP logs if emails still fail.

How to Prevent This Problem

• Always use SMTP instead of PHP Mail.
• Test your contact form regularly.
• Monitor email delivery.
• Use a professional email service.

22. WordPress Automatic Logout

If WordPress keeps logging you out while you’re writing posts or editing pages, the issue is usually related to browser cookies, incorrect site URLs, or session settings.

Although frustrating, it’s usually easy to fix.

How to Fix It

Step 1: Clear your browser cookies.

Step 2: Clear your browser cache.

Step 3: Check that the WordPress Address and Site Address match.

Step 4: Disable browser extensions temporarily.

Step 5: Deactivate security or login plugins.

Step 6: Log in again.

How to Prevent This Problem

• Keep your browser updated.
• Avoid changing your website URL frequently.
• Use trusted security plugins.
• Clear browser cookies occasionally.

23. WordPress Search Not Working

A search feature helps visitors quickly find content on your website. If search results are empty or inaccurate, visitors may leave without finding the information they need.

The issue is often caused by caching plugins, search plugins, theme conflicts, or corrupted search indexes.

How to Fix It

Step 1: Test the search feature with different keywords.

Step 2: Clear your website cache.

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Step 3: Disable search-related plugins.

Step 4: Switch temporarily to a default theme.

Step 5: Rebuild the search index if using a search plugin.

Step 6: Update WordPress and all plugins.

How to Prevent This Problem

• Keep search plugins updated.
• Test your website search regularly.
• Avoid installing multiple search plugins.
• Clear your cache after major updates.

24. WordPress Scheduled Posts Not Publishing

WordPress allows you to schedule posts automatically, but sometimes scheduled articles remain unpublished. This usually happens because the WordPress Cron system isn’t working correctly.

If you run a news or blog website, this issue can cause you to miss important publishing times.

How to Fix It

Step 1: Check whether the scheduled post is still marked as “Scheduled.”

Step 2: Install a plugin like Scheduled Post Trigger if necessary.

Step 3: Disable plugins that manage caching or cron jobs.

Step 4: Configure a real server Cron Job through your hosting control panel.

Step 5: Publish another scheduled post to confirm the issue has been resolved.

How to Prevent This Problem

• Replace WP-Cron with a real server cron job.
• Keep your website receiving regular traffic.
• Monitor scheduled posts.
• Update WordPress regularly.

25. WordPress Website Not Loading After an Update

Sometimes your website stops working immediately after updating WordPress, a plugin, or a theme. This usually happens because the new version is incompatible with another plugin, your theme, or your hosting environment.

Fortunately, you can usually restore your website without losing your content.

How to Fix It

Step 1: Clear your browser and website cache.

Step 2: Disable all plugins.

Step 3: Reactivate plugins one at a time.

Step 4: Switch to a default WordPress theme.

Step 5: Enable WordPress Debug Mode to identify the error.

Step 6: Restore your latest backup if necessary.

Step 7: Roll back the problematic plugin or theme to its previous version.

How to Prevent This Problem

• Always back up your website before updating.
• Update plugins individually instead of all at once.
• Test updates on a staging website.
• Keep PHP and WordPress versions compatible.

WordPress is a powerful platform, but no website is completely free from technical problems. Whether you’re running a personal blog, a business website, or an online store, understanding these common issues can save you hours of troubleshooting and prevent unnecessary downtime.

The key to solving most WordPress problems is to stay calm and troubleshoot one step at a time. In many cases, the issue is caused by a plugin conflict, theme incompatibility, server configuration, or a simple settings mistake. Creating regular backups, keeping WordPress updated, using trusted plugins, and choosing reliable hosting are the best ways to avoid future problems.

If you’ve worked through the solutions in this guide and your website is still not functioning correctly, contact your hosting provider or seek help from the plugin or theme developer. A small issue caught early is often much easier to fix than a major problem left unresolved.