diff --git a/src/main/java/mekanism/api/transmitters/DynamicNetwork.java b/src/main/java/mekanism/api/transmitters/DynamicNetwork.java
index a239d6435..bd1533a63 100644
--- a/src/main/java/mekanism/api/transmitters/DynamicNetwork.java
+++ b/src/main/java/mekanism/api/transmitters/DynamicNetwork.java
@@ -64,7 +64,9 @@ public abstract class DynamicNetwork<A, N extends DynamicNetwork<A, N>> implemen
 			return;
 		}
 		
-		if(acceptor.getTileEntity(getWorld()) == null || acceptor.getTileEntity(getWorld()).isInvalid() || transmitter.canConnectToAcceptor(side, true))
+		World world = getWorld();
+		
+		if(acceptor.getTileEntity(world) == null || acceptor.getTileEntity(world).isInvalid() || transmitter.canConnectToAcceptor(side, true))
 		{
 			acceptorDirections.get(acceptor).remove(side.getOpposite());
 			
diff --git a/src/main/java/mekanism/common/tile/TileEntityDigitalMiner.java b/src/main/java/mekanism/common/tile/TileEntityDigitalMiner.java
index 36f2a6b84..38cc258ea 100644
--- a/src/main/java/mekanism/common/tile/TileEntityDigitalMiner.java
+++ b/src/main/java/mekanism/common/tile/TileEntityDigitalMiner.java
@@ -470,6 +470,11 @@ public class TileEntityDigitalMiner extends TileEntityElectricBlock implements I
 		stacks:
 		for(ItemStack stack : stacks)
 		{
+			if(stack == null)
+			{
+				continue;
+			}
+			
 			for(int i = 0; i < 27; i++)
 			{
 				if(testInv[i] == null)