MediaWiki internal error.

Original exception: [81626f8396dc86b85031f4a8] 2024-03-29 12:19:09: Fatal exception of type "Wikimedia\Rdbms\DBQueryError"

Exception caught inside exception handler.

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