I think a lot of people are having this problem since the new game launcher came down, myself included. I've asked the same question on other sites but have yet to get anyone who knows how to remedy it. My problem isn't getting LSPDFR to work, but rather, getting past the Activation Required message that pops up when launching older versions of the game. I use the folder rename method along with unknown modder's LauncherBypass and its worked great for a long time now... until a couple weeks ago when Rockstar royally effed it all up with their new game launcher. You used to be able to just swap the folder names around to satisfy Rockstar server connection requirements, then swap them back and you could once again play an old version several times before having to do it again, but that method no longer works but some say it still works fine for them. All I know is I can't play old versions of the game anymore and it sucks and there doesn't seem to be any answers for it 😕