White screen and sometimes black lines on calculator after it fell

White screen and sometimes black lines on calculator after it fell

My calculator worked perfectly fine yesterday, and this morning I tried to turn it on but it only shows a white screen. After trying to reset it way too many times I sometimes get black lines going over the screen. Not only have I tried resetting but I also took out the battery. This calcular is only 3 month old and I don’t know what to do.