hello! unfortunately i can't tell what the error is just from that. i think ren'py should give you a more detailed traceback.txt, but would you be able to copy/paste that into a comment here (or send it to me @ )?
This is a customized GUI for ren'py. It includes the PNG files and all of the code already programmed into a renpy file (Not Built). You can take the code and assets out, or rename the renpy game file and use it. 041b061a72