Can bus error, check if the interface is properly connected to the vehicle and the correct vehicle interface is connected

Hi everyone, hoping someone can offer me some advice, I’m a complete newby to this software, so apologies if this is Multiecuscan 101, I’ve looked through previous posts, but couldn’t find an answer. I have an Alfa Romeo Brera 2.4 and just had to replace the steering lock ECU. Before I can start the...