ReactOS gone wrong crashing

Well..
So i was installing ReactOS on virtualbox for some point, and.. the pixel bit are too low, so i begin to mess around with color bits and everything i set to the highest, it will glitch out of everything, i set it back to the lowest bit so that it will become stable, and i didn't expect it went black screen, i resetted it and it shows blue screen where the error code is 0000000
i still tried everything, i changed the vm ram to anything and yet, it still crashes.