Larian Studios Forums Divinity - Original Sin Divinity - Original Sin - Enhanced Edition Now Working - Enhanced Edition 4 Player Mod

Ok so when I today logged on Divinity I got this error message referred to the file in the Mods/Main folder...

https://imgur.com/KocQpLj

I found the pattern in the .exe file and it seems to be fine, but I have no idea what's wrong with the first part...I've read what LAROmega said but I dont get what "copying in the entire exploded package, with the modified file" means.