I'd check you have your hopper plugged in and there are no obstructions blocking any exit routes of the hopper. Same with note acceptor (if fitted) as your code is mentioning it.
For some reason it's looking for a note acceptor that isn't there, that's why your getting the error. It shouldn't be looking though if dip 8 is set to off. Opening and closing doors doesn't make a lot of sense. I'd be inclined to say the MPU you have is faulty and always looking for the acceptor or the dip 8 is stuck in the on position.
Count up from the bottom and switch sw8 on then off. It shouldn't be looking for a note acceptor if that is switched off. CCT N Comms is machine trying to communicate with a note acceptor. CCT C + CCT H are coin and hopper.
You need to get in contact with @Reg (same name over there) he is the admin there. Yes you will need to do an introduction and sign up with a non disposable email address (no Hotmail type addresses) Hope you get sorted.