Socket file not found

When I rebooted a RHEL rancher host for adding some additional partition, not all rancher agents are coming online, getting below error in all of the application containers in rancher host ui section

socket file not found at /var/run/rancher/storage/rancher-secrets.sock

But I noticed that socket files exists

ls -l rancher-secrets.sock
lrwxrwxrwx. 1 root root 45 Aug 21 13:05 rancher-secrets.sock -> /var/run/rancher/storage/rancher-secrets.sock

After a few minutes , all got healed automatically…

Any idea what went wrong?