Let me look at the crash logs if I received them.
I’ve moved your post to its own topic like the post about the beta advises to do. That way it’s easier to keep each issue separately and not get confused.
I’ve looked at your crash log and it seems to have an issue opening the database.
Can you delete your Rekord Buddy folder (in your music folder) and try to launch the app again? It could be a database corruption from a previous beta.
Let me know if this works.
Alternatively, try the (627) build I just posted.