For those still having problems
Download BePinex file (64bit version if using X64 operating system) and extract it.
Copy BepinEx folder and other files to game folder where game .exe is
Click on BepinEx folder and inside it, create new folder and call it plugins
Place the TP dll file inside Plugin folder
Run game
Note, after running game for first time, files are created (including the config file that needs editing)
Quit game
Locate the created Bepin config file, scroll down to [Preloader.Entrypoint] set type=MonoBehaviour
If done correctly, game will work without paper error