Not in Capture One, but on a laptop I recently had a similar message about the instruction at "..." referencing memory at location "..." which could not be read. This happened during the boot up process, and the computer wouldn't boot, even into safe mode (it runs Win XP). At first I thought the hard drive might be fried or the machine dead, so I tried cleaning the contacts on the memory cards and hard drive connectors, and lo-and-behold, the problem went away!
So I would suggest backing up everything important (just in case), then shutting down, and then removing the memory simms or dimms or whatever, wiping the contacts with a soft clean cloth and reinserting them. That just may solve the problem.