I have lost access to my password manager.. keepass2. How do i troubleshoot?

This is a keepass error, not the nitrokey.
I had a recovery key…
But i do not think this one is good… I can’t even log in with the nitrokey and password… Just recovery. I don’t know why the database is not working or how to restore it?
Do i need to log in with recovery seed every time or what?
Can’t i use KeepassXC instead? Or something that works…
How am i even locked out? Lucky i got the recovery… Can anyone help me out here?
I don’t think keepass seems like the best solution if i get locked out… And don’t know why.
What’s the best way to restore the passwords? Should i export them and try creating another database and import them there maybe? It’s to complicated with keepass and the settings also… There should be some easier alternative in my opinion…