[01:27:21] [Server thread/INFO]: TiranDirth joined the game
[01:27:21] [Server thread/INFO] [EnderCore]: Sending server configs to client for com.enderio.core.common.config.ConfigHandler
[01:27:21] [Server thread/INFO] [Waila]: Player GCEntityPlayerMP['TiranDirth'/3948805, l='AFBCraft', x=-790.58, y=67.33, z=-159.59] connected. Sending ping
[01:27:21] [Server thread/INFO] [Mekanism]: Sent config to 'TiranDirth.'
[01:27:24] [Server thread/ERROR] [FML]: Exception caught during firing event net.minecraftforge.event.entity.living.LivingEvent$LivingUpdateEvent@7f06591b:
java.lang.NoSuchMethodError: micdoodle8.mods.galacticraft.core.util.WorldUtil.getProviderForDimensionClient(I)Lnet/minecraft/world/WorldProvider;
at galaxyspace.SolarSystem.core.events.GSEventHandler.freezeBlocks(Unknown Source) ~[GSEventHandler.class:?]
at galaxyspace.SolarSystem.core.events.GSEventHandler.onEntityUpdate(Unknown Source) ~[GSEventHandler.class:?]
at cpw.mods.fml.common.eventhandler.ASMEventHandler_405_GSEventHandler_onEntityUpdate_LivingUpdateEvent.invoke(.dynamic) ~[?:?]
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54) ~[ASMEventHandler.class:?]
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:140) [EventBus.class:?]
at net.minecraftforge.common.ForgeHooks.onLivingUpdate(ForgeHooks.java:287) [ForgeHooks.class:?]
at net.minecraft.entity.EntityLivingBase.func_70071h(EntityLivingBase.java:1560) [sv.class:?]
at net.minecraft.entity.player.EntityPlayer.func_70071h(EntityPlayer.java:288) [yz.class:?]
at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:295) [mw.class:?]
at net.minecraft.network.NetHandlerPlayServer.func_147347_a(NetHandlerPlayServer.java:303) [nh.class:?]
at net.minecraft.network.play.client.C03PacketPlayer.func_148833_a(SourceFile:137) [jd.class:?]
at net.minecraft.network.play.client.C03PacketPlayer$C06PacketPlayerPosLook.func_148833_a(SourceFile:20) [jf.class:?]
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212) [ej.class:?]
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165) [nc.class:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:659) [MinecraftServer.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:334) [lt.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685) [li.class:?]
[01:27:24] [Server thread/ERROR] [FML]: Index: 12 Listeners:
[01:27:24] [Server thread/ERROR] [FML]: 0: NORMAL
[01:27:24] [Server thread/ERROR] [FML]: 1: ASM: baubles.common.event.EventHandlerEntity@644d419d playerTick(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 2: ASM: vazkii.botania.common.item.equipment.bauble.ItemTravelBelt@7ae01e0f updatePlayerStepStatus(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 3: ASM: vazkii.botania.common.item.equipment.bauble.ItemFlightTiara@5adc1dea updatePlayerFlyStatus(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 4: ASM: vazkii.botania.common.brew.potion.PotionFeatherfeet@1881a3bc onEntityUpdate(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 5: ASM: vazkii.botania.common.brew.potion.PotionAllure@479aac7b onEntityUpdate(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 6: ASM: com.rwtema.extrautils.item.ItemAngelRing$EventHandlerRing@16c1b36f entTick(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 7: ASM: Reika.ChromatiCraft.ChromaticEventManager@4f47766a sinkingEnchantment(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 8: ASM: Reika.ChromatiCraft.ChromaticEventManager@4f47766a checkRainbowForest(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 9: ASM: Reika.ChromatiCraft.ChromaticEventManager@4f47766a stopSomeTicks(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 10: ASM: crazypants.enderio.machine.spawner.BlockPoweredSpawner@3e2a7bd2 onLivingUpdate(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 11: ASM: micdoodle8.mods.galacticraft.core.event.EventHandlerGC@7bdc742e entityLivingEvent(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 12: ASM: galaxyspace.SolarSystem.core.events.GSEventHandler@257a35e8 onEntityUpdate(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 13: ASM: vazkii.botania.common.core.handler.SheddingHandler@526cef98 onLivingUpdate(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 14: ASM: twilightforest.TFEventListener@7b0b1c88 livingUpdate(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)Z
[01:27:24] [Server thread/ERROR] [FML]: 15: ASM: com.carpentersblocks.util.handler.EventHandler@7a952a6b onLivingUpdateEvent(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 16: ASM: com.rwtema.extrautils.EventHandlerServer@528127c7 updateEntity(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 17: ASM: com.rwtema.extrautils.EventHandlerSiege@5af55f73 Siege(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 18: ASM: Reika.ChromatiCraft.Auxiliary.Ability.AbilityHelper@7d6728e8 addPoint(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 19: ASM: galaxyspace.SolarSystem.core.achievements.AchEvent@498755e7 onEntityUpdate(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 20: ASM: com.emoniph.witchery.infusion.Infusion$EventHooks@7eabbb6e onLivingUpdate(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 21: ASM: com.emoniph.witchery.common.GenericEvents@5126b3b2 onLivingUpdate(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/ERROR] [FML]: 22: ASM: com.emoniph.witchery.brewing.potions.WitcheryPotions$EventHooks@1db91e55 onLivingUpdate(Lnet/minecraftforge/event/entity/living/LivingEvent$LivingUpdateEvent;)V
[01:27:24] [Server thread/WARN]: Failed to handle packet for /109.148.157.81:61373
net.minecraft.util.ReportedException: Ticking player
at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:349) ~[mw.class:?]
at net.minecraft.network.NetHandlerPlayServer.func_147347_a(NetHandlerPlayServer.java:303) ~[nh.class:?]
at net.minecraft.network.play.client.C03PacketPlayer.func_148833_a(SourceFile:137) ~[jd.class:?]
at net.minecraft.network.play.client.C03PacketPlayer$C06PacketPlayerPosLook.func_148833_a(SourceFile:20) ~[jf.class:?]
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212) ~[ej.class:?]
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165) [nc.class:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:659) [MinecraftServer.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:334) [lt.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685) [li.class:?]
Caused by: java.lang.NoSuchMethodError: micdoodle8.mods.galacticraft.core.util.WorldUtil.getProviderForDimensionClient(I)Lnet/minecraft/world/WorldProvider;
at galaxyspace.SolarSystem.core.events.GSEventHandler.freezeBlocks(Unknown Source) ~[GSEventHandler.class:?]
at galaxyspace.SolarSystem.core.events.GSEventHandler.onEntityUpdate(Unknown Source) ~[GSEventHandler.class:?]
at cpw.mods.fml.common.eventhandler.ASMEventHandler_405_GSEventHandler_onEntityUpdate_LivingUpdateEvent.invoke(.dynamic) ~[?:?]
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54) ~[ASMEventHandler.class:?]
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:140) ~[EventBus.class:?]
at net.minecraftforge.common.ForgeHooks.onLivingUpdate(ForgeHooks.java:287) ~[ForgeHooks.class:?]
at net.minecraft.entity.EntityLivingBase.func_70071h(EntityLivingBase.java:1560) ~[sv.class:?]
at net.minecraft.entity.player.EntityPlayer.func_70071h(EntityPlayer.java:288) ~[yz.class:?]
at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:295) ~[mw.class:?]
... 10 more
[01:27:24] [Server thread/INFO]: TiranDirth lost connection: TextComponent{text='Internal server error', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null}}
[01:27:24] [Server thread/INFO]: TiranDirth left the game

Minecraft version: 1.7.10
Galacticraft version: 3.0.12.502
Forge version: 10.13.4.1614
Galaxy Space version: 1.1.5

Attempted an update to 1.1.7 a while ago but that caused a crash on loading the pack (which I meant to raise as a different issue and will retry it and do so later/tomorrow).

Closing this myself, the 118 update fixes everything!