P40: NVRM: This PCI I/O region assigned to your NVIDIA device is invalid

Hello, I am unable to get my P40 card to work when passing it through Proxmox to an Ubuntu server VM, as upon installing the Nvidia drivers onto the system and rebooting it continues to repeat this error:

2023-09-04T01:11:31.067665+00:00 gputest kernel: [   10.383146] NVRM: This PCI I/O region assigned to your NVIDIA device is invalid:
2023-09-04T01:11:31.067667+00:00 gputest kernel: [   10.383146] NVRM: BAR0 is 0M @ 0x0 (PCI:0000:01:00.0)

I am struggling to figure this out, any help is appreciated.
nvidia-bug-report.log (2.8 MB)