After selecting backup file, can not restore from it and can not restore from automatic backup anymore

[JeanGarf]

Steps to reproduce the behaviour

1. Preference & Maintenance > Backup & export > Select backup file and save with provided filename
   Preference & Maintenance > Backup & export > Restore Backup...
   In the confirmation pop-up click "Restore"

2. It is also not more possible to select an automatic backup to restore

3. Preference & Maintenance > Backup & export Move
   "Enable Dropbox" and "Enable ownCloud" are in Backup Preference Section

Expected behaviour

1. A new restored book should be created

2. Be able to select an automatic backup (by clicking "back" button in Preference & Maintenance > Backup & export > Select backup) and proceed to restore from it

3. Preference & Maintenance > Backup & export Move
   "Enable Dropbox" and "Enable ownCloud" are in Export Preference Section

Actual behaviour

1. Toast with an error message

2. Not possible to get automatic backup selection popup anymore

3. Preference & Maintenance > Backup & export Move
   "Enable Dropbox" and "Enable ownCloud" are in Backup Preference Section

Software specifications

• GnuCash Android version: 2.4.1 (commit 85704b4)
• System Android version: 9
• Device type: Galaxy Note 8