proxmox error 500

eror 500: can't lock file '/var/log/pve/tasks/.active.lock' - got timeout) this error is always appears even i have restart the service, anyone can help me to fix it ?

Sorry, but I have to up a thread - https://forum.proxmox.com/threads/ceph-rbd-error-rbd-couldnt-connect-to-cluster-500.18319/#post-172882 Problem was solved on first node only, but not fix on second. P.S.: I had to copy the file (keyring) only on the first node. After that Ceph path was...