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The Ultimate Guide to Fixing Common WordPress Issues

WordPress is the world’s most popular content management system (CMS), powering over 40% of all websites. Its flexibility, ease of use, and extensive plugin ecosystem make it a favorite among bloggers, businesses, and developers alike. However, like any software, WordPress can encounter issues that disrupt your website’s functionality and performance. Understanding these common WordPress problems and knowing how to solve them is crucial for maintaining a smooth-running site. In this guide, we’ll explore the most frequent WordPress issues and provide practical solutions to fix them.

1. The White Screen of Death (WSOD)

Issue: The White Screen of Death (WSOD) is a frustrating issue where your website displays a blank white screen, rendering it inaccessible.

Cause: This can be caused by a variety of issues including plugin conflicts, theme problems, or exhausted memory limits.


  1. Disable Plugins: Use an FTP client to access your website’s files. Navigate to the wp-content/plugins directory and rename the plugins folder to plugins_disabled. This will deactivate all plugins. Check your site; if it loads, reactivate each plugin one by one to identify the culprit.
  2. Switch to a Default Theme: Rename your current theme’s folder in wp-content/themes to something else. This will force WordPress to revert to a default theme (like Twenty Twenty-One). If the site loads, the issue lies within your theme.
  3. Increase PHP Memory Limit: Edit your wp-config.php file and add the following line:

    define('WP_MEMORY_LIMIT', '64M');

2. Internal Server Error (500)

Issue: The Internal Server Error (500) is a generic error message indicating a problem on the server side.

Cause: This can result from a corrupted .htaccess file, plugin or theme conflicts, or insufficient PHP memory.


  1. Corrupted .htaccess File: Rename the .htaccess file in your site’s root directory to .htaccess_old. Then, log into your WordPress dashboard, navigate to Settings > Permalinks, and click Save Changes. This will generate a new .htaccess file.
  2. Increase PHP Memory Limit: As mentioned above, increase your PHP memory limit.
  3. Deactivate Plugins: Follow the same plugin deactivation steps as for WSOD to identify any problematic plugins.

3. Error Establishing Database Connection

Issue: This error occurs when WordPress is unable to connect to the database.

Cause: Possible reasons include incorrect database credentials, a corrupted database, or a down database server.


  1. Check Database Credentials: Verify the database name, username, password, and host in the wp-config.php file.

    define('DB_NAME', 'database_name');
    define('DB_USER', 'database_user');
    define('DB_PASSWORD', 'database_password');
    define('DB_HOST', 'localhost');
  2. Repair Database: Add the following line to your wp-config.php file and navigate to

    define('WP_ALLOW_REPAIR', true);

    Follow the instructions to repair the database.

  3. Check with Hosting Provider: Ensure that your database server is running and there are no issues on the host’s end.

4. Sidebar Below Content

Issue: The sidebar appearing below the main content instead of beside it.

Cause: This is often due to HTML/CSS errors in the theme files or plugin conflicts.


  1. Validate HTML: Use an HTML validator to check your site’s code for any missing or incorrect tags.
  2. Switch Theme: Activate a default WordPress theme to see if the issue persists. If not, the problem is with your current theme.

5. 404 Error on Posts

Issue: Posts return a 404 error when trying to access them.

Cause: This is usually a permalink issue.


  1. Reset Permalinks: Go to Settings > Permalinks in your WordPress dashboard and click Save Changes to regenerate the permalinks.

6. Connection Timed Out

Issue: Your website times out while trying to load.

Cause: This can be caused by heavy plugins, theme issues, or server limitations.


  1. Increase PHP Memory Limit: Follow the steps mentioned earlier to increase memory.
  2. Deactivate Heavy Plugins: Disable plugins that may be consuming too many resources.
  3. Optimize Site Performance: Use caching plugins like W3 Total Cache or WP Super Cache and consider upgrading your hosting plan if necessary.

7. Maintenance Mode Stuck

Issue: Your site is stuck in maintenance mode after an update.

Cause: This happens if the update process was interrupted.


  1. Delete .maintenance File: Access your site via FTP and delete the .maintenance file in the root directory.

8. Failed Auto-Update

Issue: WordPress auto-update fails.

Cause: This can be due to file permission issues, plugin conflicts, or server configuration.


  1. Manual Update: Download the latest WordPress version. Upload the new files via FTP, replacing the existing ones, except the wp-content directory and wp-config.php file.
  2. File Permissions: Ensure the correct file permissions (usually 755 for directories and 644 for files).

9. Broken Links After Migration

Issue: Links are broken after migrating the site to a new domain or server.

Cause: Incorrect URL paths.


  1. Update URLs: Use a plugin like Velvet Blues Update URLs to update old URLs in your content and database.

10. Images Not Uploading

Issue: You’re unable to upload images to the media library.

Cause: File permission issues or PHP configuration limits.


  1. File Permissions: Ensure the wp-content/uploads directory has the correct permissions (typically 755).
  2. Increase Upload Size Limit: Modify the php.ini file to increase the upload file size limit:

    upload_max_filesize = 64M
    post_max_size = 64M

11. Slow Performance

Issue: Your WordPress site is slow to load.

Cause: Unoptimized images, heavy plugins, poor hosting, or lack of caching.


  1. Optimize Images: Use image optimization plugins like Smush or EWWW Image Optimizer.
  2. Caching: Implement caching with plugins such as W3 Total Cache or WP Super Cache.
  3. Upgrade Hosting: Consider switching to a more reliable hosting provider or upgrading your current plan.

12. WordPress Not Sending Emails

Issue: WordPress fails to send emails.

Cause: Server configuration issues or conflicts with email settings.


  1. SMTP Plugins: Use plugins like WP Mail SMTP to configure your site to send emails via an SMTP server.

13. Blocked Admin Access

Issue: You’re locked out of the WordPress admin area.

Cause: Plugin conflicts, login issues, or database errors.


  1. Disable Plugins: Rename the plugins folder via FTP to plugins_disabled.
  2. Reset Password: Reset your admin password via phpMyAdmin by editing the wp_users table.
  3. Repair Database: Repair your database via phpMyAdmin or by adding define('WP_ALLOW_REPAIR', true); to wp-config.php and following the repair instructions.

14. Gutenberg Block Editor Issues

Issue: Problems using the Gutenberg block editor.

Cause: Plugin conflicts or theme compatibility issues.


  1. Check Compatibility: Ensure that your plugins and themes are compatible with Gutenberg.
  2. Classic Editor: If issues persist, consider using the Classic Editor plugin to revert to the old editor.

15. Security Vulnerabilities

Issue: Your site is vulnerable to security threats.

Cause: Outdated plugins/themes, weak passwords, or lack of security measures.


  1. Regular Updates: Keep WordPress, themes, and plugins updated to the latest versions.
  2. Strong Passwords: Use strong, unique passwords for all user accounts.
  3. Security Plugins: Install security plugins like Wordfence or Sucuri to protect your site from threats.


Running a WordPress site can occasionally present challenges, but understanding these common issues and their solutions can help keep your website running smoothly. Regular maintenance, such as updating plugins, themes, and WordPress core, backing up your site, and optimizing performance, is essential. By following the solutions provided in this guide, you can effectively troubleshoot and resolve most WordPress problems, ensuring a better experience for both you and your visitors.

Maintaining a WordPress site requires diligence, but with the right knowledge and tools, you can manage it effectively. Whether you are a beginner or an experienced developer, being prepared to handle these common issues will save you time and frustration, allowing you to focus on creating great content and growing your online presence.

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