Unable to login after update

Another update. I see my backups shrunk since yesterday. I think I need to restore the one before that.

However, (i never worked with MSSQL) I need some help to do this. In my struggles I tried:

1> ALTER DATABASE vault SET RECOVERY SIMPLE;
2> go
1> RESTORE DATABASE vault
2> FROM DISK = ‘/etc/bitwarden/mssql/backups/vault_FULL_06012018_000003.BAK’
3> WITH FILE=1, NORECOVERY;
4> go
Msg 3154, Level 16, State 4, Server 19e34fea9334, Line 1
The backup set holds a backup of a database other than the existing ‘vault’ database.
Msg 3013, Level 16, State 1, Server 19e34fea9334, Line 1
RESTORE DATABASE is terminating abnormally.

What are the commands to do this?

Thanks!