Updated drone 1.3.1 to 1.4.0

I updated my drone from 1.3.1 to 1.4.0 and after that I couldn’t log in to my drone again.
I checked the documentation and saw that it is recommended to use oauth, so I configured my Gitea to do so according to the documentation. I still can’t login and get “Authorization failed, unregistered redirect uri”. Does anybody have an idea where I went wrong?

Forget it. Looks like I was too stupid to do a proper copy and paste…