Launcher issues.

Hi I have an issue with my minecraft launcher. This is probably the wrong place for this but I've looked everywhere on the internet and can't find a solution. Whenever I start minecraft after 1-2 minutes my game crashes and I when I look in my launcher log I see this: [ERROR]: Game ended with bad state (exit code -1073741819) and sometimes [ERROR]: Game ended with bad state (exit code 255)
Could anyone please help me! I really need to get this fixed cause it's stopping me from using Minecraft on my pain PC.