[PVE-User] Proxmox VE 6.0 - GUI problem

[lord_Niedzwiedz]

     This problem appears for the second time on the same machine.
I have problematic 8.1 windows there.
Once that they turn off themselves (on the VBox it wasn't)
Two that the server stopped responding by GUI yesterday.
"qm list" could do nothing.
He was hanging after the command.
I gave "init 6".
Sooooo long restarted.

And I have this symptom this morning.

root at tomas1:~# systemctl status pveproxy
● pveproxy.service - PVE API Proxy Server
    Loaded: loaded (/lib/systemd/system/pveproxy.service; enabled; 
vendor preset: enabled)
    Active: active (running) since Mon 2019-08-19 08:05:08 CEST; 4min 
30s ago
   Process: 2999 ExecStart=/usr/bin/pveproxy start (code=exited, 
status=0/SUCCESS)
  Main PID: 3006 (pveproxy)
     Tasks: 4 (limit: 4915)
    Memory: 129.8M
    CGroup: /system.slice/pveproxy.service
            ├─3006 pveproxy
            ├─7396 pveproxy worker
            ├─7397 pveproxy worker
            └─7398 pveproxy worker

Aug 19 08:09:35 tomas1 pveproxy[7336]: worker exit
Aug 19 08:09:35 tomas1 pveproxy[7337]: worker exit
Aug 19 08:09:35 tomas1 pveproxy[3006]: worker 7336 finished
Aug 19 08:09:35 tomas1 pveproxy[3006]: starting 1 worker(s)
Aug 19 08:09:35 tomas1 pveproxy[3006]: worker 7397 started
Aug 19 08:09:35 tomas1 pveproxy[3006]: worker 7337 finished
Aug 19 08:09:35 tomas1 pveproxy[3006]: starting 1 worker(s)
Aug 19 08:09:35 tomas1 pveproxy[3006]: worker 7398 started
Aug 19 08:09:35 tomas1 pveproxy[7397]: /*unable to open log file 
'/var/log/pveproxy/access.log' - Permission denied*/
Aug 19 08:09:35 tomas1 pveproxy[7398]: /*unable to open log file 
'/var/log/pveproxy/access.log' - Permission denied*/

root at tomas1:~#
root at tomas1:~# ls -lh /var/log/pveproxy/access.log
-rw------- 1 root root 0 Aug 16 00:00 /var/log/pveproxy/access.log
root at tomas1:~# chmod 777 /var/log/pveproxy/access.log
root at tomas1:~# systemctl restart pveproxy

And I see gui !!  ;-/

No idea exception why so this.