The proxmox template could use an extra check in its expression if the VM/LXC status is actually running for the following triggers:

• Proxmox: VM [ {#NODE.NAME}/{#QEMU.NAME}|#NODE.NAME}/{#QEMU.NAME}]: has been restarted
  * Proxmox: LXC [{#NODE.NAME}

  /{#LXC.NAME}|#NODE.NAME}/{#LXC.NAME}]: has been restarted

If the status of the VM/LXC is stopped the uptime is set to 0 by proxmox which results in the above triggers being triggered on every check (...even though the VM/LXC is not running).