[16:35:34] [Server thread/WARN]: Failed to handle packet for /127.0.0.1:51003 net.minecraft.util.ReportedException: Colliding entity with block at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:477) ~[mw.class:?] at net.minecraft.network.NetHandlerPlayServer.func_147347_a(NetHandlerPlayServer.java:488) ~[nh.class:?] at net.minecraft.network.play.client.C03PacketPlayer.func_148833_a(C03PacketPlayer.java:36) ~[jd.class:?] at net.minecraft.network.play.client.C03PacketPlayer$C06PacketPlayerPosLook.func_148833_a(C03PacketPlayer.java:234) ~[jf.class:?] at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:245) ~[ej.class:?] at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:181) [nc.class:?] at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:1023) [MinecraftServer.class:?] at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:432) [lt.class:?] at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:841) [MinecraftServer.class:?] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:693) [MinecraftServer.class:?] at java.lang.Thread.run(Unknown Source) [?:1.8.0_201] Caused by: java.lang.NoClassDefFoundError: ic2/api/info/Info at gregapi.damage.DamageSources.getElectricDamage(DamageSources.java:31) ~[DamageSources.class:?] at gregapi.util.UT$Entities.applyElectricityDamage(UT.java:2672) ~[UT$Entities.class:?] at gregapi.tileentity.connectors.MultiTileEntityWireElectric.onEntityCollidedWithBlock(MultiTileEntityWireElectric.java:182) ~[MultiTileEntityWireElectric.class:?] at gregapi.block.multitileentity.MultiTileEntityBlock.func_149670_a(MultiTileEntityBlock.java:225) ~[MultiTileEntityBlock.class:?] at net.minecraft.entity.Entity.func_145775_I(Entity.java:1070) ~[sa.class:?] at net.minecraft.entity.Entity.func_70091_d(Entity.java:626) ~[sa.class:?] at net.minecraft.entity.EntityLivingBase.func_70612_e(EntityLivingBase.java:1831) ~[sv.class:?] at net.minecraft.entity.player.EntityPlayer.func_70612_e(EntityPlayer.java:1874) ~[yz.class:?] at net.minecraft.entity.EntityLivingBase.func_70636_d(EntityLivingBase.java:2163) ~[sv.class:?] at net.minecraft.entity.player.EntityPlayer.func_70636_d(EntityPlayer.java:622) ~[yz.class:?] at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:1954) ~[sv.class:?] at net.minecraft.entity.player.EntityPlayer.func_70071_h_(EntityPlayer.java:315) ~[yz.class:?] at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:399) ~[mw.class:?] ... 10 more Caused by: java.lang.ClassNotFoundException: ic2.api.info.Info at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?] at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_201] at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_201] at gregapi.damage.DamageSources.getElectricDamage(DamageSources.java:31) ~[DamageSources.class:?] at gregapi.util.UT$Entities.applyElectricityDamage(UT.java:2672) ~[UT$Entities.class:?] at gregapi.tileentity.connectors.MultiTileEntityWireElectric.onEntityCollidedWithBlock(MultiTileEntityWireElectric.java:182) ~[MultiTileEntityWireElectric.class:?] at gregapi.block.multitileentity.MultiTileEntityBlock.func_149670_a(MultiTileEntityBlock.java:225) ~[MultiTileEntityBlock.class:?] at net.minecraft.entity.Entity.func_145775_I(Entity.java:1070) ~[sa.class:?] at net.minecraft.entity.Entity.func_70091_d(Entity.java:626) ~[sa.class:?] at net.minecraft.entity.EntityLivingBase.func_70612_e(EntityLivingBase.java:1831) ~[sv.class:?] at net.minecraft.entity.player.EntityPlayer.func_70612_e(EntityPlayer.java:1874) ~[yz.class:?] at net.minecraft.entity.EntityLivingBase.func_70636_d(EntityLivingBase.java:2163) ~[sv.class:?] at net.minecraft.entity.player.EntityPlayer.func_70636_d(EntityPlayer.java:622) ~[yz.class:?] at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:1954) ~[sv.class:?] at net.minecraft.entity.player.EntityPlayer.func_70071_h_(EntityPlayer.java:315) ~[yz.class:?] at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:399) ~[mw.class:?] ... 10 more Caused by: java.lang.NullPointerException [16:35:34] [Server thread/INFO]: ProperSAMA lost connection: Internal server error [16:35:34] [Server thread/INFO]: ProperSAMA left the game.