Epic games launcher cannot login

I installed fortnite though lutris and it worked fine, however I wanted to switch account as I don’t want to risk a ban and now the login form is broken and the input boxes are missing. I have reinstalled fortnite and lutris but it is now broken on first opening which it wasn’t before. How to I reset all my lutris settings to default? I have a feeling some file is being left behind when I remove it with ubuntu software centre.