the sensor says moon window is open when it is not

Is this vehicle still underneath factory warranty? The best choice would be to have a no-charge repair at your Toyota dealership if so! Other than that, the only suggestion is to have testing performed. Too hard to guess without hands on diagnostic procedures.

"Moon roof" travel is is programmable and likely has gotten confused - as stated see dealer if warranty is still in effect Local auto repair facility should be equipped to do the reset procedure using scan tool.