Dishwasher confused

Question

Dishwasher was switched off just after cycle commenced (tablet had been released). On restarting dishwasher, it wouldn't take in water and has just been going through the motions of the cycle without anything happening. Even when the power button on the machine is switched off or the door is opened, the motor continues to run but without water. Water is definitely switched on under sink. I think the computer is confused - can you please help?