MediaWiki internal error.

Original exception: [ZgbYPVNBEI-vP9LL@J2XCAAAAA8] 2024-03-29 15:03:25: Fatal exception of type "Wikimedia\Assert\PostconditionException"

Exception caught inside exception handler.

Set $wgShowExceptionDetails = true; at the bottom of LocalSettings.php to show detailed debugging information.