Proxmox completely broken - Please help ASAP

Code:
root@s104497:/etc/pve# ls -lsa /var/lib/pve-cluster/
total 36
 4 drwxr-xr-x  2 root root  4096 Apr  2 09:56 .
 4 drwxr-xr-x 50 root root  4096 Mar 28 23:23 ..
28 -rw-------  1 root root 28672 Apr  2 08:30 config.db
 0 -rw-------  1 root root     0 Mar  6 20:30 .pmxcfs.lockfile
Hi,
do you have an backup?
Normaly it's looks like this:
Code:
ls -lsa /var/lib/pve-cluster/
total 1216
   4 drwxr-xr-x  2 root root    4096 Feb 25 09:20 .
   4 drwxr-xr-x 46 root root    4096 Oct  8 22:34 ..
 144 -rw-------  1 root root  141312 Apr  2 17:09 config.db
  32 -rw-------  1 root root   32768 Apr  2 17:10 config.db-shm
1032 -rw-------  1 root root 1049080 Apr  2 17:10 config.db-wal
   0 -rw-------  1 root root       0 May 12  2016 .pmxcfs.lockfile
Udo