Hi Emke,
Dear member of SanDisk Community, welcome.
Well, friend maybe we can fix the problem.
There are two ways: A) Backup, or B) back to the time when “it was all good.”
A) Tell me if you made the backup to your PC:
2.9- There is an option (in the toolbar My Vault), which generates a Backup (for SandiskSecureAccess Vault), to your PC.
- If you did it, you have [ SanDiskSecureAccess Vault ] on your PC, then we continue with A).
- If you did not, we continue with B).
Luck, and then you tell us, what happened, please.
Regards, Alfred. (Google translated)