Months ago, some distributions accidentally removed cryfs and encfs from Vaults dependenices in the past. And some distributions are removing them intentionally from their package repositories (at least, for the time being).

It might be a good idea to switch your vaults to gocrtyptfs.

There is no automatic process for this, just create a new vault (it will be gocryptfs-based – other backends have been removed from the UI in the latest versions) and copy the data from the old one there.