On my site (trollpasta.miraheze.org), there appears to be a glitch that doesn't allow you to view the next page of a category; if you click on (next page) it still shows the current/first page.
One example is here: https://trollpasta.miraheze.org/wiki/Category:Creepypasta_Trying_to_Be_Serious_but_Fails - but it also happens on all other categories.
I have no idea what could be causing this.