Finally actually fixed some stuff

src/main/java/ellpeck/actuallyadditions/ActuallyAdditions.java

@@ -31,7 +31,10 @@ import ellpeck.actuallyadditions.items.InitItems;
 import ellpeck.actuallyadditions.items.ItemCoffee;
 import ellpeck.actuallyadditions.material.InitArmorMaterials;
 import ellpeck.actuallyadditions.material.InitToolMaterials;
-import ellpeck.actuallyadditions.misc.*;
+import ellpeck.actuallyadditions.misc.DispenserHandlerEmptyBucket;
+import ellpeck.actuallyadditions.misc.DispenserHandlerFertilize;
+import ellpeck.actuallyadditions.misc.DispenserHandlerFillBucket;
+import ellpeck.actuallyadditions.misc.WorldData;
 import ellpeck.actuallyadditions.network.PacketHandler;
 import ellpeck.actuallyadditions.ore.InitOreDict;
 import ellpeck.actuallyadditions.proxy.IProxy;
@@ -123,7 +126,6 @@ public class ActuallyAdditions{
     @EventHandler
     public void serverStopped(FMLServerStoppedEvent event){
         //Clear Data so that it won't be carried over to other worlds
-        LaserRelayConnectionHandler.getInstance().networks.clear();
         PersistentServerData.playerSaveData.clear();
     }
 }

src/main/java/ellpeck/actuallyadditions/event/InitEvents.java

@@ -31,6 +31,7 @@ public class InitEvents{
         Util.registerEvent(new EntityLivingEvent());
         Util.registerEvent(new BucketFillEvent());
         Util.registerEvent(new LogoutEvent());
+        Util.registerEvent(new WorldLoadingEvents());
         MinecraftForge.TERRAIN_GEN_BUS.register(new WorldDecorationEvent());
     }
 

src/main/java/ellpeck/actuallyadditions/event/WorldLoadingEvents.java

@@ -0,0 +1,31 @@
+/*
+ * This file ("WorldLoadingEvents.java") is part of the Actually Additions Mod for Minecraft.
+ * It is created and owned by Ellpeck and distributed
+ * under the Actually Additions License to be found at
+ * http://github.com/Ellpeck/ActuallyAdditions/blob/master/README.md
+ * View the source code at https://github.com/Ellpeck/ActuallyAdditions
+ *
+ * © 2015 Ellpeck
+ */
+
+package ellpeck.actuallyadditions.event;
+
+import cpw.mods.fml.common.eventhandler.SubscribeEvent;
+import ellpeck.actuallyadditions.misc.LaserRelayConnectionHandler;
+import net.minecraftforge.event.world.WorldEvent;
+
+public class WorldLoadingEvents{
+
+    @SubscribeEvent
+    public void onLoad(WorldEvent.Load event){
+        if(LaserRelayConnectionHandler.getInstance() == null){
+            LaserRelayConnectionHandler.setInstance(new LaserRelayConnectionHandler());
+        }
+    }
+
+    @SubscribeEvent
+    public void onUnload(WorldEvent.Unload event){
+        //Clear Data so that it won't be carried over to other worlds
+        LaserRelayConnectionHandler.getInstance().networks.clear();
+    }
+}

src/main/java/ellpeck/actuallyadditions/misc/LaserRelayConnectionHandler.java

@@ -31,12 +31,13 @@ public class LaserRelayConnectionHandler{
     public ConcurrentSet<Network> networks = new ConcurrentSet<Network>();
 
     public static LaserRelayConnectionHandler getInstance(){
-        if(instance == null){
-            instance = new LaserRelayConnectionHandler();
-        }
         return instance;
     }
 
+    public static void setInstance(LaserRelayConnectionHandler handler){
+        instance = handler;
+    }
+
     public NBTTagCompound writeNetworkToNBT(Network network){
         NBTTagList list = new NBTTagList();
         for(ConnectionPair pair : network.connections){