Posted by Here is a comprehensive list of common wordpress Fix all plugion error, categorised by type, along with their possible causes and solutions:
WordPress Plugin Error List (With Causes & Fixes)
Minor Plugin Errors
Plugin Could Not Be Activated Because It Triggered a Fatal Error
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- Cause: Incompatible plugin, PHP errors, or missing files.
- Fix: Check error logs or enable WP_DEBUG to identify the issue.
Plugin Update Failed
- Cause: Poor internet connection, server timeout, or incorrect file permissions.
- Fix: Manually update the plugin via FTP or cPanel.
Plugin Conflict (Site Broken or White Screen After Activation)
- Cause: Incompatible plugins/themes.
- Fix: Rename the plugin folder via FTP to disable, then activate one by one.
Missing Plugin Files
- Cause: Incomplete plugin installation or corrupted zip file.
- Fix: Delete and reinstall the plugin from a verified source.
Plugin Install Failed: Destination Folder Already Exists
- Cause: Plugin folder not removed after uninstall.
- Fix: Delete the existing folder in /wp-content/plugins/ via FTP or File Manager.
Plugin Not Displaying on Admin Menu
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Major Plugin Errors
Critical Error After Plugin Activation
- Cause: Plugin incompatibility with the current WordPress version or PHP.
- Fix: Restore backup or disable via FTP, then update PHP/WordPress.
Plugin Breaks Site URLS or Layout
- Cause: Cache plugin conflict or shortcode issues.
- Fix: Clear cache and disable conflicting plugins.
Plugin Not Compatible With PHP Version
- Cause: Plugin requires a newer/older PHP version.
- Fix: Change PHP version via the hosting panel or contact the plugin author.
“There Has Been a Critical Error on This Website” After Plugin Install
- Cause: Fatal error in plugin functions.php or other files.
- Fix: Enable WP_DEBUG, locate the issue in wp-content/debug.log.
Plugin Leaves Broken Shortcodes After Deletion
- Cause: Unregistered shortcodes from deleted plugins.
- Fix: Manually clean up content or use a cleanup plugin like Shortcode Cleaner.
Security Vulnerability in Plugin
- Cause: Outdated plugin or known exploits.
- Fix: Remove or update the plugin immediately; monitor with security plugins (e.g., Wordfence).
Plugin Settings Not Saving
Tools to Debug Plugin Errors
- WP Debug Mode:
Add to wp-config.php:define('WP_DEBUG', true); define('WP_DEBUG_LOG', true); define('WP_DEBUG_DISPLAY', false); - Health Check & Troubleshooting Plugin
- Error Log Viewer or Log from cPanel
- WP-CLI to manage and diagnose plugins via the command line
Tip: Always test new plugins on a staging site and keep backups before activating or updating.
Would you like a downloadable PDF or image cheat sheet for this plugin error list?
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