GalaxySpace version 1.2.3
GalactiCraft version 3.0.12.503
I went to the moon dungeon and got the schematic box in survival mode,then open it and got 5 schematics.I put one of them into the NASA workbench to unlock the recipe of rocket part,then reopen the NASA workbench's GUI,clicked "Next page",the game crash.I restart minecraft to do it over and over again,and I realize that minecraft sometimes crash,sometimes not crash.This is the crash report.

Description: Updating screen events java.lang.BootstrapMethodError: call site initialization exception at java.lang.invoke.CallSite.makeSite(Unknown Source) at java.lang.invoke.MethodHandleNatives.linkCallSiteImpl(Unknown Source) at java.lang.invoke.MethodHandleNatives.linkCallSite(Unknown Source) at galaxyspace.galaxies.milkyway.systems.SolarSystem.planets.overworld.inventory.schematics.ContainerSchematicBooster.func_75130_a(Unknown Source) at galaxyspace.galaxies.milkyway.systems.SolarSystem.planets.overworld.inventory.schematics.ContainerSchematicBooster.<init>(Unknown Source) at galaxyspace.galaxies.milkyway.systems.SolarSystem.planets.overworld.gui.schematics.GuiSchematicBooster.<init>(Unknown Source) at galaxyspace.galaxies.milkyway.systems.SolarSystem.planets.overworld.schematic.SchematicBooster.getResultScreen(Unknown Source) at micdoodle8.mods.galacticraft.core.client.gui.GuiHandler.getClientGuiElement(GuiHandler.java:268) at micdoodle8.mods.galacticraft.core.client.gui.GuiHandler.getClientGuiElement(GuiHandler.java:147) at cpw.mods.fml.common.network.NetworkRegistry.getLocalGuiContainer(NetworkRegistry.java:265) at cpw.mods.fml.common.network.internal.FMLNetworkHandler.openGui(FMLNetworkHandler.java:93) at net.minecraft.entity.player.EntityPlayer.openGui(EntityPlayer.java:2209) at micdoodle8.mods.galacticraft.core.event.EventHandlerGC.schematicFlipEvent(EventHandlerGC.java:575) at cpw.mods.fml.common.eventhandler.ASMEventHandler_241_EventHandlerGC_schematicFlipEvent_FlipPage.invoke(.dynamic) at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54) at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:140) at micdoodle8.mods.galacticraft.api.recipe.SchematicRegistry.flipToNextPage(SchematicRegistry.java:119) at micdoodle8.mods.galacticraft.core.client.gui.container.GuiSchematicTier1Rocket.func_146284_a(GuiSchematicTier1Rocket.java:47) at net.minecraft.client.gui.GuiScreen.func_73864_a(GuiScreen.java:225) at net.minecraft.client.gui.inventory.GuiContainer.func_73864_a(GuiContainer.java:326) at net.minecraft.client.gui.GuiScreen.func_146274_d(GuiScreen.java:296) at net.minecraft.client.gui.inventory.GuiContainer.func_146274_d(GuiContainer.java) at net.minecraft.client.gui.GuiScreen.func_146269_k(GuiScreen.java:268) at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1640) at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:973) at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:898) at net.minecraft.client.main.Main.main(SourceFile:148) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) Caused by: java.lang.ClassCastException: bootstrap method failed to produce a CallSite ... 33 more

I'm sorry, I forgot to add the description that day. Now this issue has been corrected.

only crashes because of this schematic ContainerSchematicBooster?

Not only,maybe all of the rocket parts.

Do you have other addons?

Yes.OK,now I delete all the addons except Galacticraft and GalaxySpace then restart minecraft,but the problem still can't solve.

@BlesseNtumble
Well,later,I think this problem is unimportance.Because the game is sometimes crash instead always crash.So you can close this issue now.

Check the configs of other add-ons, maybe you have a conflict of schematic page IDs