Android wont boot anymore (HI10 HQ64G42180100730)

Hello everyone i have booted Linux Ubuntu over a usb (not installed anything just used it over the usb) on the tablet and now it seems that Android wont boot up does someone has a idea how i can boot up to android again ?

Hello again!
so i found in the Community for 1803 the Android flash files, is it okay to use it for my Tablet(HQ64G42180100730) ?