Written by Admin on 2025-05-06

Troubleshooting 'WordPress admin-ajax.php call to a member function date on null'

If you're encountering an error message in your WordPress admin-ajax.php file that says "Call to a member function date() on null", you're not alone. This error message typically appears when trying to perform some sort of action, like saving changes to a post or updating a plugin.

The first step in troubleshooting this issue is to determine what's causing the error message. Here are a few potential causes and solutions:

1. Issues with WordPress updates

Sometimes, the admin-ajax.php error message can be caused by issues with WordPress updates. In this case, you'll want to try updating your WordPress installation to the latest version. You can do this by going to the Updates page in your WordPress dashboard and clicking the "Update Now" button.

2. Plugin conflicts

It's possible that the error message is being caused by a conflict with one of your WordPress plugins. To find out which plugin is causing the problem, you'll need to deactivate all of your plugins and see if the error message disappears. If it does, you can then reactivate your plugins one by one to determine which one is causing the issue.

3. Theme conflicts

In some cases, the admin-ajax.php error message can be caused by conflicts with your WordPress theme. To test this, try switching to a different theme (like the default WordPress theme) to see if the error message goes away.

4. Corrupted WordPress files

It's possible that the error message is being caused by corrupted WordPress files. In this case, you can try reinstalling WordPress to see if that fixes the issue.

5. Server issues

Finally, the error message could be caused by issues with your web server. Make sure your server is running the latest version of PHP and that all necessary server requirements are met.

These are just a few potential causes and solutions for the admin-ajax.php error message. If none of these solutions work, you may need to reach out to a WordPress developer for help.