I am trying to add the condition of maximum members for self-enrolment to a group by enrollment key in Moodle.

I have a problem with Moodle. I logged in with an administrator account. after that it is redirected to the index.php page. It turns out there is information for an update so it displays a compatibility check. After everything is compatible, I click continue. After that the following error appears.

I have 2 tables: