At the Critical Role wiki, there seems to be an error in calculating what current exists on the wiki after a significant number of pages and text File pages (lacking associated images) were deleted earlier as part of housekeeping after a large import. Special:Statistics is currently listing about 5,500 content pages (I understand this to be mainspace pages that are not redirects) when there's closer to 3,000. Categories are showing the incorrect number of items, most visible at Category:Images; there's currently only 4 files on the wiki, and none of them are in that category or any of its sub-categories. The file pages still being counted as existing is apparently forcing significant number of categories to exist even though the category itself appears empty, see this Special:Categories query. The large number of sub-categories listed under Category:Fan art, see in the Images category, also suggests that the wiki is still tabulating a significant number of deleted and non-existent categories.
I've waited about a day or so, hoping it will resolve itself, and I've also checked the API to make sure that there weren't any jobs in the queue. The API currently lists the incorrect number of pages, but the correct number of images.