Welp...

[Tepig4321]

java.lang.NullPointerException
at com.skcraft.launcher.swing.InstanceTableModel.<init>(InstanceTableModel.java:29)
at com.skcraft.launcher.dialog.LauncherFrame.<init>(LauncherFrame.java:83)
at com.skcraft.launcher.FancyLauncherFrame.<init>(FancyLauncherFrame.java:24)
at com.skcraft.launcher.FancyLauncher$CustomWindowSupplier.get(FancyLauncher.java:61)
at com.skcraft.launcher.FancyLauncher$CustomWindowSupplier.get(FancyLauncher.java:51)
at com.skcraft.launcher.Launcher.showLauncherWindow(Launcher.java:341)
at com.skcraft.launcher.FancyLauncher$1.run(FancyLauncher.java:41)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

 

[Watchful11]

That's not even from the FTB launcher. Locking thread, post in either the modpack bugs or launcher bugs section if you have a specific problem.