I just found a solution for the problem what I wrote a few mins ago:
Downloaded the latest LSPDFR from the site
Manually drag and drop everything from the zip to the game folder
I started the LSPDFR Configurator.exe and do every steps
Launched the game by the RagePluginHook.exe
The game loaded, hit F4 to open console, type the ForceDuty command
Happy dance
After that everything works fine, plugins loaded.
Just a tip: If you have rockstar launcher version of the game do a Verify Integrity and if you have mods in OpenIV copy update.rpf to mods folder
(The OpenIV will show you it in a pop-up message)