VM failing to backup to Proxmox Backup Server, please help

I have several VMs running on proxmox PVE which are able to automatically backup to a Proxmox backup server with no issues. However, one of the VMs is no longer able to complete a backup and gives the error below. What could be the issue and how can i resolve it?


INFO: 0% (196.0 MiB of 367.0 GiB) in 3s, read: 65.3 MiB/s, write: 25.3 MiB/s
INFO: 1% (3.7 GiB of 367.0 GiB) in 1m 24s, read: 44.6 MiB/s, write: 25.1 MiB/s
INFO: 2% (7.4 GiB of 367.0 GiB) in 2m 42s, read: 48.5 MiB/s, write...

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