Old Magimix Food Processor, no chopping blade (Woodingdean BN2)

Magimix 2800, great old machine and the motor is brilliant. Still has dough blade, slicing disc and grating disc but unfortunately the sharp blade has split and I have been unable to replace. I first bought one of these models about 40 years ago and it's still going strong! It was a top model at the time. Hoping someone will be able to use it still.