Fix apparmor=”DENIED” operation=”sendmsg” class=”file”
SSH into the container causing the message and add the permission to a local AppArmor override file Reload the apparmor profile. Reboot the container. https://forum.proxmox.com/threads/very-frequent-apparmor-logs-after-updating-pve.176684/#:~:text=Fix%20within%20Container:%20The%20recommended%20solution%20involves,applied%20directly%20to%20the%20container’s%20AppArmor%20configuration.