I'm having the same problem too. Previously, RPH would crash the game from startup (decided to try one more time before just giving up on the whole thing altogether. Funnily enough, it managed to fix itself somehow??).
My new problem now is that I'm having issues getting LSPDFR to load.
My install order is as follows:
1) LSPDFR 041
2) ScriptHookV 1.0.1604.1
3) RagePluginHook 0.65.1237.15477a
4) TrainerV
5) OpenIV (installed all tools)
Other than the list shown above, I have no other installed mods/plugins/addons, etc.
I have tried running both GTAV.exe and RPH as admin, but, for whatever reason, Steam doesn't like having GTAV being run like that as it
Here are my screenshots for reference
GTAV Dir
LSPDFR
Mods
Plugins
RagePluginHook_02042019_222545.log