I just figured it out.
How did you do it (Alby with amethyst on Android)
I don't know if your problem is the same but long press on your zap button on any post.
It will bring up wallet connect and it should show the alby bee, click on that and it should open and auto fill everything.
I checked out your profile and it looks like you need to put in your Lnurl in your profile first.