My problem is if i want to launch it gives this error:
[INFO] laklek[/127.0.0.1:55947] logged in with entity id 10307 at (205.5, 70.50000305175782, 246.5)
[WARNING] Failed to handle packet for laklek/127.0.0.1: java.lang.NullPointerException
java.lang.NullPointerException
at micdoodle8.mods.galacticraft.core.GalacticraftCore$ServerPacketHandler.onPacketData(GalacticraftCore.java:424)
at cpw.mods.fml.common.network.NetworkRegistry.handlePacket(NetworkRegistry.java:255)
at cpw.mods.fml.common.network.NetworkRegistry.handleCustomPacket(NetworkRegistry.java:245)
at cpw.mods.fml.common.network.FMLNetworkHandler.handlePacket250Packet(FMLNetworkHandler.java:83)
at net.minecraft.network.NetServerHandler.func_72501_a(NetServerHandler.java:1098)
at net.minecraft.network.packet.Packet250CustomPayload.func_73279_a(SourceFile:59)
at net.minecraft.network.TcpConnection.func_74428_b(TcpConnection.java:461)
at net.minecraft.network.NetServerHandler.func_72570_d(NetServerHandler.java:134)
at net.minecraft.network.NetworkListenThread.func_71747_b(NetworkListenThread.java:53)
at net.minecraft.server.dedicated.DedicatedServerListenThread.func_71747_b(SourceFile:30)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:674)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:274)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:570)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:468)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)