Board Thread:Support Requests - Getting Technical/@comment-40107923-20200602153810

My boyfriend tried making an edit on The Amazing World of Gumball wiki only for it to be caught by the abuse filter. I checked his userpage and his profile reads "A WIkia contributor" next to his username. He tried signing out, but he couldn't sign back in. FANDOM seems to think his account doesn't exist. Is this something fixable, or would he have to make a new account? 