Hmm, it looks like you put the game’s files in the folder of an older version, try deleting the file gui.rpy on folder “game” It a new error appears again, keep deleting the .rpy file that it says you have twice, (deleting the oldest one, on folder “game”. I dont have my pc now to show you an screenshot, sorry.
If that doesnt work, or dont want to mess up, you could also delete the game files, and extract the latest dowbload again, a clean installation, without duplicated older files.