Fon automatically restart whan open app and suddenly can't touch myscreen fon?

Hello
My Fon auto restart whant open application than after restarting screen can't to touch.
Pls asst me.
0
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Hello
My Fon auto restart whant open application than after restarting screen can't to touch.
Pls asst me.
Comments
What phone are you using? What firmware are you on?