/wp-admin error 500 after update plugin

Hi @vasilisweb ,

Thanks for reaching out.

I’m sorry to hear you’re running into a 500 error after the update. I understand how frustrating it is to lose access to your dashboard, but we’ll certainly help you get this sorted out.

Since the issue is isolated to the /wp-admin area and resolves when AIOSEO is deactivated, this often points to either PHP memory exhaustion or a conflict with another active plugin.

You mentioned the debug log is empty. Because a 500 error is a fatal server error, the crash can happen so quickly (often due to running out of memory) that WordPress doesn’t have time to write the error to the debug.log file.

Please try the following steps to troubleshoot:

1. Increase PHP Memory Limit:
   This is the most common cause for backend crashes after an update. Please try increasing your WordPress memory limit to ensure the server has enough resources. You can do this by adding the following line to your wp-config.php file, right before the line that says “That's all, stop editing“:

define( 'WP_MEMORY_LIMIT', '512M' );or above.

2. Check Server-Level Logs:
   If increasing the memory doesn’t work, please check if the error is recorded in your server’s main Apache or Nginx error log. If you’re unsure where to find this, your hosting provider can locate it for you. This log is crucial, as it will show the specific fatal error causing the crash.

Also, please double-check that you’ve followed the standard method to check the debug.log, as outlined here: https://aioseo.com/docs/how-to-enable-debugging-in-wordpress/

Please let me know if increasing the memory resolves the issue or if you are able to retrieve an error message from the server logs.

I’m looking forward to hearing from you!

Hi @vasilisweb,

I appreciate your update and follow-up. I’m happy to hear that your website’s problem has been fixed!

Thanks!