The appliance is not plugged in. Put the plug in the wall socket.
The mains cord is damaged. If the mains cord is damaged, you must have it replaced by Philips, a service centre authorised by Philips or similarly qualified persons in order to avoid a hazard.
The lid is not assembled properly. The salad maker only works if the lid is fixed and locked. Fix and lock the lid.
The bowl is not assembled properly. The salad maker only works if the bowl is fixed and locked. Fix and lock the bowl.