FERMAX Ref 3431 Nuki Opener

Who can help to correctly connect it.
I tried it with the configuration of Fermax TF-1Z.
It worked so that I could open the door with the app but never with using the bell outside. So I decided to configure it again and now I doesn’t work at all.
Can someone please help me with a solution.
Many thanks,


Did you manage to connect it? I have the same Fermax.