If anything related to Renpy (the engine used for the vn) breaks, it's immediately error message popup, not delayed, hence why it should be related to your system instead.
Uh sorry, Android is def my weak point.
Was the old version fully removed?
Did you try cleaning up old save files? (Can't guarantee, but I heard saves should be in SD:/Android/data/com.fatescollide.program/files/saves/
Did it alert of suspicious file? It often happens that it registers it as suspicious, so maybe it didn't install properly.
Do try to uninstall and check those things I said and get back to me. Unfortunately, if it persist, and it doesn't show any error code message, there is nothing else I can do.