Ok i fixed the error but still Ad rotator and Mango doesn't seem to be good combination.
old versions of for example admob and microsoft pubcenter are included and don't seem to work or only work partly in mango. (admob clicks dont work, pubcenter only works for US phones)
i tried upgrading admob and pubcenter but admob doesn't work at all with mango and pubcenter changed a lot so it's not working with Adrotator.
Did anyone else get it working with Mango?