If your light was purchased from a retailer in Germany, it will be one of our StVZO compliant lights. StVZO lights are not compatible with Modemaker and cannot be updated, which is a requirement by German StVZO standards.
All STVZO lights will give you an error or incorrect product ID. Do not attempt to program the light as you will risk not being able to undo this, In most cases attempts to program StVZO lights will result in an internal error and the light will no longer work as it should.