Hi,

I don't know what happened, but I just logged into my system and
deleted some unused files in my home directory. Just some directories.

Suddenly everything on my system became read only. While rebooting I
think I saw messages like:

"BTRFS Error"

I booted into a live environment to restore my snapshots, then while
mounting the BTRFS root partition I got:

mount: /mnt: wrong fs type, bad option, bad superblock on
/dev/mapper/dm_crypt, missing codepage or helper program, or other
error.