Iphone 8 plus faill and shut down

I am using iphone 8plus about 1 year I use it.

Yesterday suddenly the screen gone black and down.

I have tried to re-start and recovery it back but it doesn't work.

Tried many times and on the screen appear lighting cable connect to the computer and on the top mentioned support.apple.com/iphone/restore

I have no idea what should i do now to make the device functioning back.