1.3 backup database done, starts correctly only once, then always DB problem

I did the backup of the DB before installing the 1.3
i upgraded and had problem to start…so … uninstalled ( taking away all the appl data also) and reinstalled 1.3 and copied the 1.2 db on it.
It works only the first time i start the program ( it also convert the DB seems just in less than 1 minute) it also be able to play songs.
if i close and start again it fails and says there was a problem with the data…-> “contact the support”
did many time uninstall/reinstall and copied 1.2 db on it … always work only the first time then never more on the next start…
what to do ?

we want to check your logs - I’ll PM you shortly with more details.