What Are WordPress Plugin Conflicts?
Plugin conflicts in WordPress happen when two or more plugins (or a plugin and a theme) don’t work well together. This can cause parts of your site to break, like layouts disappearing, buttons not working, or even your entire site crashing. These issues usually appear after installing a new plugin or updating an existing one.
Luckily, conflicts are common and usually easy to fix with a simple step-by-step check.
WordPress Plugin Conflict Debug Checklist
1. Backup Your Website
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Use a plugin like Duplicator or UpdraftPlus.
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Make sure you have a full backup (files + database).
2. Enable Safe Mode (If Available)
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Some tools like WP Safe Mode or Elementor have a "Safe Mode" to test without affecting live users.
3. Deactivate All Plugins
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Go to Plugins > Installed Plugins
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Click Deactivate all plugins (bulk action)
4. Activate Theme Only
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Use a default theme like Twenty Twenty-Four
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This helps rule out theme-related issues.
5. Reactivate Plugins One-by-One
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Reactivate each plugin one at a time.
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After activating each, test the issue (e.g., check the broken feature or page).
6. Identify the Conflict
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When the problem returns after activating a specific plugin = That plugin may be the cause.
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Note if it only happens when two specific plugins are active together.
7. Check for Plugin/Theme Updates
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Go to Dashboard > Updates
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Update all plugins, themes, and WordPress core.
8. Clear Cache
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Clear browser cache
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Clear any caching plugin (e.g., WP Super Cache, LiteSpeed)
9. Check Console for Errors (Optional)
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Right-click > Inspect > Console tab (in browser)
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Look for red error messages
10. Contact Support
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Reach out to the plugin/theme developers with:
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Site info
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Plugin version
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What you tested
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Error messages (if any)