Attack of the b team problem Attack of The B Team Launcher Problems

[santiagoisaac13]

I've downloaded the technic launcher and whenever I try to launch Attack of The B Team the launcher disappears and then comes back as if it was going to work. This is also occurring on the other modpacks. Whats my problem and what should I try and do? I'm also on a macbook pro.

[Munaus]

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