Authentication Failed Error

[StarCutter]

I keep getting this error no matter what. I am Win10 and have japanese unicode but, I have also used the Win8 solution with the verison.dll and src but it just gives me a failed to open this file. Can't even install the game as it gives me a failed to install.

 

The game is Real Imouto ga Iru Ooizumi-kun no Baai.

 

Here is the error: https://ibb.co/DfrZRxJ