Do I have to reinstall again after deleted .deb file ?

because When I installed Cepi version over the Tgalal version
it keeped shutting down
so I just deleted .deb file, restarted N9
and opened wazapp again, everything worked like a charm
But I feel there's some bug about receiving message when offline, especially from groupchat
So I'm not sure if it's because I didn't reinstall for the .deb file or it's just a normal bug from this version.

Ps. sorry if found this spamming