Board Thread:Support Requests - Getting Technical/@comment-2244164-20161202065800/@comment-168424-20161203005745

That's your problem, most likely. Many people think Wikia wikis are just scaled down copies of Wikipedia, but in actuality they have different code bases. Wikia uses an older version of the MediaWiki engine with some added features and some taken away. The Lua is different too in all likelihood.

Your best bet is ask Wikia staff for help via Special:Contact/general or maybe ask for help at the Lua Help board on Dev wiki.