Resolving HTTP 500 Errors After Plugin Updates
You updated a WordPress plugin and now your site shows a 500 error. The issue is usually a compatibility problem between the new plugin and an outdated WordPress installation. Here’s how to fix it.
What’s Happening
When you update plugins, they sometimes require a newer version of WordPress to work properly. If your WordPress core is outdated, the updated plugins won’t be compatible, causing your site to crash with a 500 error.
The fix: Update WordPress first, then the plugins will work.
Signs You Have This Problem
- Site shows HTTP 500 error immediately after updating plugins
- The WordPress admin area is also inaccessible
- The error started right after the plugin updates
- Older WordPress installation with recently updated plugins
Fix It (Step by Step)
1. Update WordPress Core
Log into your hosting control panel and use the installer to update WordPress to the latest compatible version.
This is the critical step—your plugins need a current WordPress version to function.
2. Test Your Site
Once WordPress is updated, visit your site. The 500 error should be gone. Also test the WordPress admin area to make sure it’s accessible.
3. Check Your Active Theme
Make sure your active theme is compatible with the updated WordPress version. If it’s outdated or no longer supported:
- Update it to a current version, or
- Switch to a different supported theme
4. Review Your Plugins
Once WordPress and theme are current, check the plugins you just updated. Confirm they’re running supported versions compatible with your new WordPress setup.
5. Test Everything
Visit your site front-end and back-end. All should load without errors.
Still Broken?
If the 500 error persists after updating WordPress core, the problem might be a specific plugin or theme conflict. Contact support with details about which plugins you updated, and we can help identify the culprit.
Keep it current. WordPress, plugins, and themes need to stay compatible to avoid these crashes. Updates exist for a reason.