So I have a problem that i cant figure out, I have a Macbook Air 2013 (this may or may not help) and I was wondering why when I load up the game in offline mode (I don't have Internet at my house), the mod and its attachments don't show up at all, its the only mod that i have this problem with and I love this mod to death so it pains me to not be able to use it.

Thanks in advance.