I had previously gotten the youtube extension on my wiki "holycross.miraheze.org". I went into "Manage a wiki" in settings to change something else entirely, but pressing submit disabled every enabled extension instead which was actually just the youtube extension. Now every time I try to change it back I get Internal Error [24ff36348a646d92a9af30d9] 2018-05-12 02:08:48: Fatal exception of type "MWException". None of the videos on my wiki work as a result and I really want this to get fixed ASAP.