Ok , i understand.
I suggest you like you wrote before , to reinstall the game... The right version is 0.5.2PE , just download from MEGA for example ,extract the files and run. No password needed.
Start the game to verify that all works normally ; only after this verification , if you want ,you can download the patch incest file , that you can find in the OP :
DO NOT EXTRACT - It's not meant to be extracted just copy the file as is to the right folder :
PC: "Unconditional Love_Data/LANGUAGES" folder.
After that you copied the patch , start the game and in main menu in the right side , click the Unrated English Flag to make start the incest patch