Tefal 8in1 Double Force Pro Food Processor & Blender, 3L Bowl, 2L Jug, 6 speeds, 1000W, Chop, Grate, Slice, Shred, Knead, Beat, Dishwasher Safe, Black, DO821840

Try checking that the interlocking system is fully in place. All Food Processors need to have the bowl and the lid fitted correctly before processing will start, this is a safety feature so that the blades cannot spin while exposed. When the bowl and lid are locked into place securely, the markings on them will be aligned.