App empty after update

[Sicilian Tutor]

After last version upgrade (from app store) all the cards are missing, the Expansion, Card database, needed and my precious sections are totally empty and a error message appears when i try to update database.
What appened?

[Piotr]

IMPORTANT: When you loose your data, never ever do the Database Update nor Backup, as this will overwrite your automatic backups.

You run out of memory when updating the database. Try this:

0. Kill iMtG if it's running on your device.
1. Connect your device to your PC or Mac so you can see it in iTunes.
2. Select your device in iTunes and go to the Apps section.
3. Locate and select iMtG in File Sharing section at the bottom of the Apps section.
4. Optional, but a good idea: Copy everything you find there to a safe place.
5. Locate iMtG~.sqlite file, doble click on it and rename it to iMtG.sqlite (remove the ~)
6. Launch iMtG.
7. Tell me if it worked, please.