HELP i cant launch attack of the b team it just go's back to launcher screen

[lugnuggets]

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[DragonScythe]

Can you provide more info?

Have you tried resetting your modpack or redownloading the launcher?

[Cutter8]

Make sure you have latest java jre platform, then reset the mod pack and run it again. Use this link to get the latest version, http://www.oracle.com/technetwork/java/javase/downloads/jre8-downloads-2133155.html.