Question Triple bluescreen and screen flickering

[Toasteykskss]

Hi. I've got an lenovo Ideapad 5 pro. Recently it has started to crash a lot. When it crashes I usually get a triple blue screen on the top half of my screen and the bottom is just black with some colored lines. Also the screen has started to flicker sometimes when I open and close my laptop screen. Anyone know what could be the issue? Thanks in advanced