Huh, well the error message does say your memory (RAM) might be corrupt, but I have had this message too, a few times and that is almost never what's the real problem, so I wouldn't worry about that just now. For now here's something else you could try:
-Running both RPH and GTAV in admin mode
-Redownloading and reinstalling LSPDFR and RPH
-I saw you have the windows creator's update installed. If you haven't already done so, go to your windows "game" settings and untick/deactivate everything.
And if none of that helps, and you think your RAM might be damaged after all, you could try running memtest (overnight, as it takes a while).