Having Issue with launching mods on Macbook

[Spctzs]

I recently installed Technic launcher to play Minecraft Sky (official) mod and I run into the issue where I can press play and instead of loading the mod it closes itself and goes back to Technic. I'm able to play vanilla Minecraft through Technic Launcher, I haven't tried downloading any other mod than Sky.

[JaariAtmc]

A full launcher screenshot or your launcher logs would help.

[Lord Ptolemy]

Not a launcher issue. Locked.