Same error reported on multiple sites


Multiple of my Wordpress websites recently threw the same error. All have MainWP installed. You can find the error below. The error was reported at virtually the same time.

How should I interpret this?

Thank you!

Call to undefined method MainWP\Child\MainWP_Child_Server_Information::get_db_size()

Hi @kgps

Can you please check what PHP version is running on those child sites, and what is the version of the MainWP Child plugin?


Thanks for getting back to me so quickly. The three sites are running two versions of PHP: 7.3.33 and

As for the MainWP plugin, all of them have version 4.4.

Thanks for the update.

We’re looking into this and we will update this thread as soon we have more information.


Can you please try this version of the MainWP Child plugin and see if it resolves the issue?

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.