Board Thread:Support Requests - Getting Started/@comment-38985164-20190409210557/@comment-26204105-20190409213808

Ah, there's the problem.

You in fact do have permissions to upload on any Wiki, it is just that this Wiki in particular has disabled Image uploading for all users, not just you.

I think it would be best to contact an administrator of that Wiki, and see what happened. It is highly unlikely they will turn back Uploading on, however. Wikis like the one you linked will soon be removed from FANDOM.