Why is the samsung s6 edge plus wont open

[usui26]

I have this problem on may Samsung galaxy s6 edge plus that the battery icon is popping out continuously on the screen with a black and blue linings on the back I don't know what happens I have this phone for a month pls help me . i was charging it when suddenly my mom called me I was talking with my friend and I put my phone on my pocket and when I checked it suddenly it'd turned off.