I am attempting to integrate Blesta (v5.12.3) with my local Proxmox VE (v7.x/8.x) server using the official Proxmox module, but the connection is failing to retrieve resource data, resulting in empty options on the package creation screen.

My Setup Details

• Blesta Location: VM on the Proxmox host.
• Proxmox Host IP: 192.168.X.X
• API Connection Test: Successful. I can telnet 192.168.X.X 8006 from the Blesta VM.
• Required Template: Downloaded and available on Proxmox: ubuntu-24.04-standard_24.04-2_amd64.tar.zst (LXC Container Template).

The Problem

When configuring the Proxmox server in Blesta (Settings > Modules > Proxmox > Edit Server), the connection is accepted but immediately fails to pull resource information.

• Result in Blesta: The dropdown menus for Proxmox Master Group and the list of Assigned Nodes remain completely empty (or show only -- Please Select --).
• Impact: I cannot save a package because Blesta does not recognize any available nodes, storage, or templates on the host.

Credentials Attempted (Known Failure Point)

I have confirmed and re-entered the credentials multiple times, specifically focusing on the required API format:

• Hostname: 192.168.X.X
• Port: 8006
• User: root@pam
• Password: Verified correct password for root@pam.

Despite the correct network path and verified credentials, Blesta cannot fetch the resource list.