JonIrenicus, as I said before, I'm loading history of (seen) notifications into chatroom. But they shouldn't be notified - maybe unless you have some weird setting to notify every single chat message. But it feels like you have completely different problem, because 3 days ago you said the same thing:
"With old version and new one (fixed) I still have message "user XXX has commented his photo". DB repair does not fix this problem."
and at that time notifications in chatroom wasn't implemented YET. So you're either a time traveler or I don't know.
Anyway, I disabled loading of old notifications so tomorrow you WON'T see old notifications in chatroom. I hope that will finally fix your issues...
yoGhurt, does it crash everytime someone reads your message? Or more occasionally?