SkyProGames(YouTube)

I was trying to launch my load my modpack and it said: "Error unzipping a file for the following pack: (Modpack Name) error in opening zip file Please consult the modpack author." i looked up videos and this is not a issue that i guess is commonly occurring so i couldnt fix it and this is a last resort if you need the mod list and or the actual mod pack files just ask me and i will happily post them if it will help, but please help me.