minecraftas14

When I try to load or download a modpack, It starts loading, then stops at 6%. it doesn't even get to the Mojang screen. It was working fine a day ago. I am running the Technic launcher on the latest Mac and running OSX El Capitan. I have just allocated 8GB of memory to the launcher, so I don't think that the memory is the problem. Please Help me, as I can't wait to start playing my modpacks again.