Abs error light

Hi inhave Benz s500 2006 4Matic .. inhad no error preiod perfect and i bought a scanner fromicarsoft MB II and i scan everything came good and next day i tried to scan again to learn all the option and i did not drive the between the 2 scan and i got an error and i dont know how to fix or where is the location of defective item that never shown before neither to dealer or my benz mech .. please help error picture attached thanks