The door is not locked properly
Laundry may be caught in the door. Open and close the door again and press the "start reload" button (play and pause button). If necessary, open the washing machine door, remove some of the cothing items and then push the door closed again. You can also try switching the washing machine off and on again, setting the programme and then starting the programme. For more information on what to do if your washing machine door is not opening or closing properly, click the link below.