Creation of NODE failed

[ausserirdischesindgesund]

Hi everybody and thanks for this great plugin. I got it working about 95% i think. I run it in docker-compose, according to the "official" docker-compose file. I get the plugin to import stuff, but when I look at the logs, I see e.g.:

netbox_1               | 10.0.17.199 - - [27/Nov/2023:07:42:10 +0000] "GET /plugins/proxbox/ HTTP/1.1" 200 92045 "http://10.0.17.240:8000/virtualization/cluster-groups/" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36"
netbox_1               | 127.0.0.1 - - [27/Nov/2023:07:42:24 +0000] "GET /api/ HTTP/1.1" 200 510 "-" "curl/7.88.1"
netbox_1               | [Proxbox - Netbox plugin | Update All]
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:28 +0000] "GET /api/virtualization/cluster-types/?name=Proxmox&slug=proxmox&limit=0 HTTP/1.1" 200 52 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:28 +0000] "POST /api/virtualization/cluster-types/ HTTP/1.1" 201 327 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:28 +0000] "GET /api/virtualization/clusters/?name=pve&type=proxmox&limit=0 HTTP/1.1" 200 52 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:28 +0000] "GET /api/virtualization/cluster-types/?name=Proxmox&slug=proxmox&limit=0 HTTP/1.1" 200 397 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:28 +0000] "GET /api/extras/tags/?name=Proxbox&slug=proxbox&limit=0 HTTP/1.1" 200 384 "-" "python-requests/2.31.0"
netbox_1               | 
netbox_1               | 
netbox_1               | 
netbox_1               | CLUSTER...172.28.0.1 - - [27/Nov/2023:07:42:29 +0000] "POST /api/virtualization/clusters/ HTTP/1.1" 201 594 "-" "python-requests/2.31.0"
netbox_1               | 
netbox_1               | [OK] CLUSTER created. -> pve
netbox_1               | 
netbox_1               | 
netbox_1               | 
netbox_1               | NODES...
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:29 +0000] "GET /api/dcim/devices/?name=pve1&limit=0 HTTP/1.1" 200 52 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:29 +0000] "GET /api/dcim/devices/?name=pve1&limit=0 HTTP/1.1" 200 52 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:29 +0000] "GET /api/dcim/device-roles/?name=Proxbox+Basic+Role&slug=proxbox-basic-role&limit=0 HTTP/1.1" 200 52 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:30 +0000] "POST /api/dcim/device-roles/ HTTP/1.1" 201 337 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:30 +0000] "GET /api/dcim/device-types/?model=Proxbox+Model&slug=proxbox-model&limit=0 HTTP/1.1" 200 52 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:30 +0000] "GET /api/dcim/manufacturers/?name=Proxbox+Basic+Manufacturer&slug=proxbox-manufacturer&limit=0 HTTP/1.1" 200 52 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:30 +0000] "POST /api/dcim/manufacturers/ HTTP/1.1" 201 380 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:30 +0000] "GET /api/extras/tags/?name=Proxbox&slug=proxbox&limit=0 HTTP/1.1" 200 384 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:30 +0000] "POST /api/dcim/device-types/ HTTP/1.1" 201 1246 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:30 +0000] "GET /api/dcim/sites/?id=1&limit=0 HTTP/1.1" 200 610 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:31 +0000] "GET /api/extras/tags/?name=Proxbox&slug=proxbox&limit=0 HTTP/1.1" 200 384 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:31 +0000] "GET /api/virtualization/cluster-types/?name=Proxmox&slug=proxmox&limit=0 HTTP/1.1" 200 397 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:31 +0000] "GET /api/virtualization/clusters/?name=pve&type=proxmox&limit=0 HTTP/1.1" 200 688 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:31 +0000] "POST /api/dcim/devices/ HTTP/1.1" 400 36 "-" "python-requests/2.31.0"
netbox_1               | [proxbox_api.create.node] Creation of NODE failed.
netbox_1               | [ERROR] Something went wrong when creating the node.-> pve1
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:31 +0000] "GET /api/dcim/devices/?name=pve3&limit=0 HTTP/1.1" 200 52 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:32 +0000] "GET /api/dcim/devices/?name=pve3&limit=0 HTTP/1.1" 200 52 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:32 +0000] "GET /api/dcim/device-roles/?name=Proxbox+Basic+Role&slug=proxbox-basic-role&limit=0 HTTP/1.1" 200 431 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:32 +0000] "GET /api/dcim/device-types/?model=Proxbox+Model&slug=proxbox-model&limit=0 HTTP/1.1" 200 1315 "-" "python-requests/2.31.0"
netbox_1               | 172.28.0.1 - - [27/Nov/2023:07:42:32 +0000] "GET /api/dcim/sites/?id=1&limit=0 HTTP/1.1" 200 610 "-" "python-requests/2.31.0"

I suspect if the plugin would work correctly, I would see the Proxmox nodes added as devices, which does not happen for me. But I do see the cluster, all virtual machines etc.

I am using Proxmox 8.1

Maybe I made a mistake in adding the custom types? Or does the plugin still have a problem with the new Proxmox 8.1? Any hints how I can investigate further?

Thanks in advance,
Ralph