hi,i have a slimline itegrated diplomat dishwasher adp 8352?

i set it off tonight and realised id forgotten to put something in,so i opened the door and i put it in only a few seconds after starting,when i shut the door it beeped as if the programme had finished and the first three lights were flashing.now it wont work,the lights keep flashing and it beeps every couple of minutes.i had anew motor fitted 6 weeks ago.thanks helen.