Elementor Keeps Loading? How to Fix the admin-ajax.php 500 Error

 If Elementor keeps loading without opening the editor, checking the browser console can reveal an error like /wp-admin/admin-ajax.php 500. This usually means WordPress is failing while processing an AJAX request.

There can be several reasons for a 500 error, including plugin conflicts, server configuration, PHP errors, or insufficient WordPress memory. However, memory limitations are one of the common things worth checking first, especially on websites using Elementor with several plugins.


Is WordPress running out of memory?

If your site doesn't have enough memory available, Elementor may fail to load properly. Increasing the WordPress memory limit can often resolve the problem.

First, open your site's wp-config.php file. You can usually find it in the root directory of your WordPress installation through your hosting File Manager or an FTP client.

Add the following before:

/* That's all, stop editing! Happy publishing. */

Use:

define( 'WP_MEMORY_LIMIT', '512M' );
define( 'WP_MAX_MEMORY_LIMIT', '512M' );

Save the file and try opening Elementor again.

What else should you check?

If Elementor is still stuck on loading, memory may not be the only problem:

  • Plugin conflict: Temporarily disable plugins and test Elementor.
  • Theme conflict: Switch temporarily to a default WordPress theme.
  • PHP memory limit: Your hosting/PHP configuration may still restrict the available memory.
  • PHP errors: Check your server's PHP error log for more details.
  • Elementor compatibility: Make sure WordPress, Elementor, PHP, and other major plugins are compatible versions.

Increasing memory is a useful first step, but it shouldn't be treated as a universal fix. If the error continues, checking the actual server error behind the 500 response is the next step.

A practical WordPress tip

When Elementor suddenly stops loading, don't immediately reinstall everything. Start with the browser console, check the admin-ajax.php response, and then work through memory, plugin conflicts, and server logs.

That approach can save time and help identify the actual cause instead of simply hiding the symptom.

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