T4 System Plugin

Hello, after installation T4 system plugin I have an error: 0 Call to a member function getGroup() on null. Any ideas? Joomla 5.2.3.

Thank You

I just tested with J!5.2.3 but could not replicate this error.

You can share the URL of this error page and the Super Admin credentials of your site, I will check for you.

Regards