> For the complete documentation index, see [llms.txt](https://docs.arkannis.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.arkannis.net/virtualization/proxmox/proxmox-common-errors.md).

# Proxmox Common Errors

### Error: TASK ERROR: VM is locked (backup)

Solution:

```bash
qm unlock <vmid>
```