Every time when i try opening up the game it closes so i go to setup and i press the FLN/Five Lustful Nights and when i press it and i try pressing the renderer it doesn't let me it shows it like a grayish color anyone can help me? or provide a vid?

I tried closing out the program and changed the file mode and changed it back it still wont let me.

It seems that you are going to have to manually delete the override file and inject a new one. 
Go to:

C:\Users\{Whatever your username is}\AppData\Roaming\Five Lustful Nights 

Delete the "override.cfg" file 

Open the program again, inject a new override file and enjoy

(I'll make an update to the program to fix this issue in the future)