Urmet 1132 - Opener not working

Dear Nuki Community,

I hope you can help me with the installation of the Opener - attached a picture of my bell system. It states that the system is the Urmet 1132 model, but following the instructions in the Nukki app, I cannot get the Opener to work. I tried to install it via the Generic Urmet Bibus installation guide, but still the Opener doesnt work. Would be great if you could help me out!

Thanks in advance,
Felix