I've recently got a new phone and can't import my Diarium database from Dropbox, even though I have successfully done so before. When I select Import and choose the database file (v4_database) from the Dropbox folder it says "Error when importing diary (file is not a database)". It worked fine last time I got a new phone so I can't work out why it won't work this time. Any thoughts?
Diarium version: 2.7.10
OS + version: Android 7.0