72 Most Common WordPress Errors and How to Fix Them

Here are links to the 72 most common WordPress errors and how to fix them. As a WordPress user, you are likely to encounter a wide range of errors, from minor glitches to critical issues that can take down your site.

  1. White Screen of Death (WSOD)
  2. 404 Page Not Found
  3. Connection Timed Out Error
  4. Sidebar Below Content Error
  5. Memory Exhausted Error
  6. Syntax Error
  7. HTTP 501 Not Implemented Error
  8. WordPress Stuck in Maintenance Mode
  9. Destination Folder Already Exists Error
  10. Pluggable.php File Errors
  11. HTTP Error When Uploading Images
  12. Briefly Unavailable for Scheduled Maintenance Error
  13. Maximum Execution Time Exceeded Error
  14. Locked Out of WordPress Admin Dashboard
  15. Error 403 Forbidden Access Denied
  16. Too Many Redirects Error
  17. 504 Gateway Timeout error
  18. Mixed Content Error
  19. White Text and Missing Buttons in WordPress Visual Editor
  20. WordPress Login Page Refreshing and Redirecting Issue
  21. Unable to Create Directory WordPress Error
  22. Sidebar Widgets Disappearing in WordPress
  23. Missing Style Sheet Error in WordPress
  24. WordPress Keeps Logging Out Problem
  25. Allowed Memory Size Exhausted Error
  26. Briefly Unavailable for Maintenance Error
  27. WordPress Posts Returning 404 Error
  28. Image Upload Issue – “Sorry, This File Type Is Not Permitted for Security Reasons.”
  29. The Uploaded File Exceeds the Upload_Max_Filesize Directive in php.ini Error
  30. Add Media Button Not Working
  31. The Site Is Experiencing Technical Difficulties Error
  32. 502 Bad Gateway Error
  33. Fatal Error: Maximum Execution Time Exceeded
  34. WordPress Memory Exhausted Error – Increase PHP Memory
  35. Cannot Modify Header Information – Headers Already Sent By Error
  36. WordPress RSS Feed Errors
  37. Error Establishing a Database Connection
  38. WordPress Website Not Updating
  39. How to Fix WordPress Posts Returning 404 Error
  40. Admin-ajax.php 404 Error on WordPress Site
  41. This Site Ahead Contains Harmful Programs Error
  42. Facebook Incorrect Thumbnail Issue
  43. Missed Scheduled Posts Error
  44. Upload Failed To Write to Disk Error
  45. Are You Sure You Want To Do This Error
  46. Common Image Issues
  47. Googlebot Cannot Access CSS and JS files
  48. Failed to Load Resource Error
  49. The Link You Followed Has Expired
  50. Connection Not Private Error
  51. File and folder Permission Errors
  52. HTTP Image Upload Error
  53. Common SSL Issues
  54. Missing a Temporary File Error
  55. Password Reset Error
  56. Another Update in Progress Error
  57. WordPress Failed to Open Stream Error
  58. 503 Service Unavailable Error
  59. How to Fix Maintenance Mode Error
  60. 500 Internal Server Error
  61. 429 Too Many Redirects Error
  62. 413 Request Entity Too Large Error
  63. Turn Off PHP Errors
  64. Secure Connection Error
  65. How to Fix cURL Error 28: Connection Timed Out
  66. Uploaded File Exceeds The upload_max_filesize Directive Error
  67. Error 521 with WordPress and Cloudflare
  68. Sorry, This File Type Is Not Permitted for Security Reasons Error
  69. Installation Failed: Could Not Create Directory Error
  70. SSH “Connection Refused” Error

 

To fix these errors, you can follow the various solutions depending on the type of error. However, it is essential to make a backup of your WordPress site before attempting to fix any errors.

You can either use a plugin to create a backup or manually create one by exporting your site files and database.

In conclusion, WordPress errors can be frustrating, but they are not insurmountable. By following the right steps and solutions, you can resolve the most common errors and keep your site running smoothly.

 

  1. White Screen of Death (WSOD): This error presents a blank, white screen on your WordPress site, indicating a critical issue that hampers content display.
  2. Error Establishing a Database Connection: It occurs when WordPress fails to connect to its database, usually due to incorrect database credentials.
  3. Internal Server Error: A generic error indicating server issues preventing the website from functioning properly.
  4. 404 Page Not Found: Signals that the requested web page or resource is unavailable on the server.
  5. Connection Timed Out Error: Arises when the server takes too long to respond to a request, resulting in a timeout.
  6. Sidebar Below Content Error: This issue places sidebar content below the main content instead of its intended position.
  7. Memory Exhausted Error: This indicates WordPress has used all available memory, leading to site crashes.
  8. Syntax Error: Occurs due to code mistakes, often in PHP, hindering its execution.
  9. HTTP 501 Not Implemented Error: Denotes the server’s inability to recognize or support the requested action.
  10. WordPress Stuck in Maintenance Mode: This happens when WordPress fails to exit maintenance mode after an update, making the site inaccessible.
  11. Destination Folder Already Exists Error: Arises during plugin or theme installation when the destination folder contains a similar item.
  12. Pluggable.php File Errors: Issues linked to the pluggable.php file, are commonly associated with functions or overrides in WordPress.
  13. HTTP Error When Uploading Images: Occurs when uploading images, often due to file size or server constraints.
  14. Briefly Unavailable for Scheduled Maintenance Error: Appears temporarily during WordPress updates.
  15. Maximum Execution Time Exceeded Error: When PHP scripts surpass the server’s maximum execution time limit.
  16. Locked Out of WordPress Admin Dashboard: Denied access to the WordPress admin dashboard due to incorrect login credentials or security measures.
  17. Error 403 Forbidden Access Denied: Lacks permission to access a specific resource due to inadequate user privileges.
  18. Too Many Redirects Error: An excessive loop of redirections, usually due to misconfigurations in settings or plugins.
  19. 504 Gateway Timeout Error: This indicates that a server acting as a gateway has not received a timely response from another server.
  20. Mixed Content Error: Arises when a site served over HTTPS contains HTTP content, impacting security and encryption.
  21. White Text and Missing Buttons in WordPress Visual Editor: Visual editor displaying white text or missing buttons due to a plugin or theme conflict.
  22. WordPress Login Page Refreshing and Redirecting Issue: The login page continuously refreshes or redirects, usually due to caching or cookie issues.
  23. Unable to Create Directory WordPress Error: This occurs when WordPress fails to create a directory, often due to incorrect file permissions.
  24. Sidebar Widgets Disappearing in WordPress: Widgets disappear from the WordPress sidebar due to theme or plugin conflicts.
  25. Missing Style Sheet Error in WordPress: This appears when the WordPress theme stylesheet is missing or not accessible.
  26. WordPress Keeps Logging Out Problem: Repeatedly logs users out of WordPress due to expired cookies or cache conflicts.
  27. Allowed Memory Size Exhausted Error: WordPress exhausts the PHP memory limit set, resulting in failures and WSOD.
  28. Briefly Unavailable for Maintenance Error: This shows up briefly during WordPress updates or maintenance.
  29. WordPress Posts Returning 404 Error: Post pages not found, usually due to permalink issues or .htaccess misconfigurations.
  30. Image Upload Issue – “Sorry, This File Type Is Not Permitted for Security Reasons.”: Disallows image upload due to file type restrictions for security purposes.
  31. The Uploaded File Exceeds the Upload_Max_Filesize Directive in php.ini Error: This error arises when attempting to upload files larger than the server’s configured limit, as set in the PHP configuration file (php.ini).
  32. Add Media Button Not Working: When the ‘Add Media’ button within WordPress fails to function properly, hindering the insertion of images or media into posts or pages.
  33. The Site Is Experiencing Technical Difficulties Error: A general error message suggesting technical issues affecting the site’s normal functionality.
  34. 502 Bad Gateway Error: This error indicates an invalid response received by a server acting as a gateway or proxy.
  35. Fatal Error: Maximum Execution Time Exceeded: When PHP scripts surpass the maximum execution time allowed, leading to a fatal error.
  36. WordPress Memory Exhausted Error – Increase PHP Memory: Signals that WordPress has consumed all available PHP memory and requires an increase in memory allocation.
  37. Cannot Modify Header Information – Headers Already Sent By Error: This error results from PHP sending header information before loading a website, preventing header modifications.
  38. WordPress RSS Feed Errors: Issues impacting RSS feeds, disrupting content syndication and distribution.
  39. Error Establishing a Database Connection: Indicates a failure in establishing a connection between WordPress and its database, often due to incorrect credentials or database server issues.
  40. WordPress Website Not Updating: When changes made to a WordPress site fail to reflect or update properly, hindering site modifications or content additions.
  41. How to Fix WordPress Posts Returning 404 Error: Steps to resolve the issue where WordPress post pages return a 404 error, making posts inaccessible.
  42. Admin-ajax.php 404 Error on WordPress Site: Occurs when the admin-ajax.php file, crucial for handling AJAX requests, cannot be found, causing functionality issues.
  43. This Site Ahead Contains Harmful Programs Error: A warning indicating potential security threats or harmful content detected on a website.
  44. Facebook Incorrect Thumbnail Issue: Errors related to incorrect or missing thumbnails when sharing a WordPress post on Facebook.
  45. Missed Scheduled Posts Error: This occurs when WordPress fails to publish posts according to their scheduled timing.
  46. Upload Failed To Write to Disk Error: An error signifying the inability to write uploaded files to the server’s disk, often due to disk space issues or permissions.
  47. Are You Sure You Want To Do This Error: A generic error message, often vague, appears during various WordPress actions or operations.
  48. Common Image Issues: Covers a range of image-related issues in WordPress, such as failed uploads, incorrect display, or size limitations.
  49. Googlebot Cannot Access CSS and JS files: Indicates Googlebot’s inability to access essential CSS and JavaScript files, affecting SEO indexing.
  50. Failed to Load Resource Error: This appears when a browser fails to load specific resources like images, scripts, or stylesheets on a web page.
  51. The Link You Followed Has Expired: A message indicating that the link accessed or a session has expired, often encountered after submitting a form or navigating to an expired URL.
  52. Connection Not Private Error: Alerts users about an insecure or unencrypted connection, usually due to expired SSL certificates or improper configurations.
  53. File and Folder Permission Errors: Issues arise from incorrect permissions assigned to files and folders in WordPress, often causing access denial or functionality problems.
  54. HTTP Image Upload Error: Errors encountered while attempting to upload images via HTTP protocol, leading to upload failures.
  55. Common SSL Issues: Encompasses various SSL-related problems, including certificate errors, insecure connections, or mixed content warnings.
  56. Missing a Temporary File Error: This occurs when WordPress fails to locate or create a temporary file necessary for proper operations.
  57. Password Reset Error: Difficulties experienced during the process of resetting passwords, commonly due to expired or invalid reset links.
  58. Another Update in Progress Error: An error message indicating that another update process is ongoing, preventing further updates at that moment.
  59. WordPress Failed to Open Stream Error: This occurs when WordPress encounters issues opening or loading a file, often due to permission or path problems.
  60. 503 Service Unavailable Error: A server-side error message indicating temporary unavailability of services or resources.
  61. How to Fix Maintenance Mode Error: This occurs when a WordPress site is stuck in maintenance mode, usually during updates. Resolving this involves removing the .maintenance file or fixing interrupted updates manually.
  62. 500 Internal Server Error: A generic server-side error indicating various underlying issues, commonly caused by faulty plugins, themes, or server misconfigurations.
  63. 429 Too Many Redirects Error: This appears when a browser or server is stuck in an infinite loop of redirection, usually due to misconfigured settings or conflicting plugins.
  64. 413 Request Entity Too Large Error: Occurs when attempting to upload files larger than the server’s permitted size, often encountered with large file uploads.
  65. Turn Off PHP Errors: This involves disabling PHP error reporting in WordPress, ensuring errors aren’t displayed publicly for security reasons.
  66. Secure Connection Error: Indicates issues with establishing a secure connection (HTTPS), commonly due to misconfigured SSL certificates or insecure content.
  67. How to Fix cURL Error 28: Connection Timed Out: A cURL error indicating that the connection timed out while attempting to access external resources, is usually resolved by checking server configurations or adjusting timeout settings.
  68. Uploaded File Exceeds The upload_max_filesize Directive Error: Resolve WordPress upload issues by increasing upload_max_filesize. Edit php.ini or .htaccess, ensuring it surpasses your file size. Plugins like “Increase Max Upload File Size” simplify this.
  69. Error 521 with WordPress and Cloudflare: Tackle WordPress 521 error caused by Cloudflare server issues. Verify server status, tweak SSL settings, or disable Cloudflare temporarily to diagnose and resolve the problem.
  70. Sorry, This File Type Is Not Permitted for Security Reasons Error: Overcome WordPress file type restrictions. Edit wp-config.php or use plugins like “WP Extra File Types” to extend allowed file types, ensuring seamless uploads.
  71. Installation Failed: Could Not Create Directory Error: Fix WordPress installation errors by checking directory permissions. Connect via FTP, verify wp-content, wp-includes, and wp-admin permissions, ensuring they’re set to 755.
  72. SSH “Connection Refused” Error: Troubleshoot SSH connection issues with diligence. Confirm SSH daemon status, check credentials, inspect open ports, ensure SSH installation, and adjust firewall settings to allow SSH connections.