Seeing as you are both email and auto-confirmed + you're not blocked, you might be caught in an IP block. You should contact Fandom support support.fandom.com/hc/requests/new
That is because all of the pages are protected so that only admins can edit. This is not allowed per Fandom's global policies. If you want to play nice, you can contact one of the local admins, inform them that protecting all/most pages like this is not allowed, and ask them to remove the protection to allows others to edit. If you want don't get anywhere with that or just don't feel like playing nice, you can report the wiki to Fandom.
FYI, here is how you can check and confirm that the pages are protected. As of right now, all 50 pages in the main namespace are listed in the query results.
