Nostr Relay Installation Problem

Hi everboy, I am trying to install the Nostr Relay App but it gets stuck while installing. Keeps showing me " Installing This may take a few minutes". I left it open over night but still no success. I can install any other app but Nostr Relay App. Anybody any idea what could be wrong?

Debian 11 and Umbrel 0.5.3, Nostr Raly 1.0.0

I found the problem: My Debian 11 was running on Proxmox in a CT. So I created a Debian 11 VM and now it is working.