Error: HTTP/1.1 403 Permission check failed

[kristian-kirilov]

This is the first time I installed a Proxmox addon but encountered an error, Error: HTTP/1.1 403 Permission check failed, I consulted this document but still fonts the problem https://pve.proxmox.com/wiki/User_Management#pveum_authentication_realms


My config:

 

[tom]

You use a third party tool, so I suggest you ask the vendor of this plugin for support.