Megxon c480. I have a megxon c480 and the optical zoom is stuck out. You can hear it trying to

Question

I have a megxon c480 and the optical zoom is stuck out. You can hear it trying to retract but the caption that comes out is that it has failed. You can not see anything through the lense either. Accept when you change the mode to setting and you can veiw setting option. What is this going to cost me to fix?