Chuwi Vi8 problem

i have Chuwi Vi8 Win8.1 first its working good bus after upgrading to Window 10 its touch screen not working properly so is make a full reset but at 66% resetting its stuck so i power off and again power on but now its not booting window now when i try to reset agian its showing error.

so please can any body help me how can i reset it or how can i reinstall Win8.1 or reinstall its firmware now what i have to do