A "Delayed Start" may have been programmed.
Turn the Selector to OFF, this will cancel the Delay Start
and machine will start normally .
Don't attempt to open the door if water still present or heat.
A wait of 3 minutes necessary before door will open
Try "PAUSE" and then OFF if machine is balking.
That could be a blocked filter, a faulty sensor or a failed control board.
Why not take the same symptoms to a local Zanussi agent and ask for a a diagnosis and estimate?