Integration of Proxmox/Debmatic

I am a beginner and my question is:
My installation is a Nuc with Proxmox and a VM with iobroker, a VM with debmatic, a VM with Home-Assistant (hassosova-5.12). In the Hass I can see all my devices but not the Homematic/HomematicIP devices.
Is it possible, that home-assistant can not access to my homematic und homematic-IP devices?
I saw a solution (Youtube) with an Integration of HomematicIP Accesspoint with SGTIN, name and PIN-code but
I don`t know what I can put into SGTIN in case of debmatic. I only have a serialnumber but no SGTIN.
Thanks for help