My modpack use vanilla instead on mods

[Houldbros]

To explain what is happening to me right now, I want to make a modpck for my buddies and I and it s downloaded perfectly fine. The problem is that none of the mods are loaded in the game. so it like playing vanilla minecraft. If anyone here can help me with that problem using Skype or something is welcome. 

BTW I'm on Mac 

[JaariAtmc]

Your forge(jar file) found in the bin folder, is it renamed to modpack?

[Houldbros]

Yes it is , can you help me on skype?

 

[Houldbros]

For anybody who is want to figure out my problem, you can add me on skype : xavi1136

 

[EvilOwl]

No platform api modpack link, no help.

[Houldbros]

https://www.dropbox.com/s/b0gwclphfyb87nh/Archive.zip?dl=1

Please excuse me, first time here