I went to a wiki post, which had slowmode on (due to off-topic posts), however, slowmode makes the wiki completely unusable when it’s too old.
I’ve contacted a TL4 to remove slow mode, and they’ve gone ahead and turned off slow mode. It resolved the wiki problem.
Once I started editing the wiki, the problem showed up:
The leaders don’t know how this appeared. They theorize that it’s most likely due to the images there.
How did this problem occur? The leaders also can’t edit, for some reason.