If you created keys on damus you can't use them on any other service or app. You need to convert them here https://damus.io/key/ For weeks I tried to login to nostr.rocks and astral.ninja + alby using keys from damus and couldn't do it. Asked on twitter - nothing. Why tf are you doing this? It's like people in this sphere don't want other to participate and create all kind of obstacles. As a non technically skilled person it's infuriating. sorry for ranting