Some memory has gone bad (from the error). If you have a memory upgrade plugged into your laptop, then take it out and see if that helps. If you are lucky it may be the upgrade module in which case plugging it back in may fix it, else replace it.
However, it may be related to other memory in the laptop, such as built into the video hardware or motherboard...in which case bin it, repair is likely to cost quite a bit (but by all means ask around for repair quotes just in case).