Try this, - blue wire of opener in the block where a yello wire is now in the intercom (both together), and the purple opener wire in the block where the red cable is in the intercom (both together) , then take the nuki clamp and put the red and yellow wire of the opener together in one block (so that the second remains free), then take the Black wire out of the intercom block 2 (bus +) and put it in the nuki clamp, now take the green opener wire and put it in block 2 (bus + where you taken out the Black before), after this put the plug of the opener wires into the opener, and reset the opener and make fresh setup, with generic bus intercom. Let me know, if it works.