First I want to say thanks to everyone that reads this. Stackoverflow is an amazing site and you guys help me out with answers everyday in the form of questions already submitt
I'd try opening this database with different SQLite clients.
If that doesn't work, the next step may be to try finding an SQLite database file validator and/or to run the standard SQLite client in debug mode (but to be honest, I don't even know if those two last options are even possible).