PHP Error when deactivating any plugin

[josklever]

The latest versions of MainWP (Dashboard and Child) are 4.3.1 (still in beta), which should give you PHP 8.1 compatibility. For oolder versions you should use PHP 8.0. But I can recommend the beta version, as it doesn’t give me any errors.
Please check this post for the beta version:

MainWP 4.3.1 Beta - PHP 8.1 Compatibility

PHP 8.1 Compatibility Testing The MainWP team has tested this update thoroughly on internal development servers and confirmed that the version works properly on PHP 8.1, however, it’s impossible to test every configuration. That is why I am asking if you could install the Dashboard and Child plugins on some of your test sites and let us know if you find any issues. DOWNLOAD MainWP Dashboard 4.3.1-beta1 MainWP Child 4.3.1-beta1 UPDATE INSTRUCTIONS New Testing Environment This update shoul…