linux lite install error

I was trying to install linux lite as sole os for my laptop, Everything went smoothly but at the end it gave grub /install/ sda failed error. now when i start it, it doesnt boot linux lite and is stuck on grub screen.

I tried to install linux lite but got a "gpu" style error on my old laptop. WARNING: PAE disabled. Use parameter 'forcepae' to enable at your own risk! This kernel requires the following features not present on the CPU. Unable to boot - please use kernel appropriate for your CPU. F6 and ESC to...