node red corosync firewall cluster

Hello, I created a 4-node cluster that worked perfectly until I enabled the firewall on the cluster and the VM. Now the problem is that every minute nodes turn red, the syslog reports this: Aug 29 18:36:23 proxmox106 corosync[30192]: [TOTEM ] FAILED TO RECEIVE Aug 29 18:36:26 proxmox106...