Thread:Comfabella/@comment-22439-20161113212321/@comment-5811199-20161114112239

Hey - go to a user's contributions page (click on a user's link, and click Contributions). There's a couple of links under the tabs - look for "user rights management". Here you can edit that user's user rights.

If you're still struggling, try directly going to Special:UserRights on your wiki, copy the username of the new admin and follow the prompts.

Good luck!