Bug: DB is corrupt and lost when phone memory is full

[iDoka]

Environment

• OS Version: 18.7.1
• App Version: 5.20-181

Description

when phone memory is full the app's DataBase (which stores any progress for every books) has been corrupted and lost all datas

Steps to reproduce the behavior

1. Having some status inside app about bookmarks/progress
2. fullfilling phone storage (up to empty free space)
3. during the openning app having message about DB corruption
4. making sure that all statuses inside app about bookmarks/progress were lost