diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f18f2dc..a53cab6 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,7 +4,7 @@ stages:
 variables:
   name: "EpicFurnaces"
   path: "/builds/$CI_PROJECT_PATH"
-  version: "4.3"
+  version: "4.3.1"
 
 build:
   stage: build
diff --git a/src/main/java/com/songoda/epicfurnaces/hologram/Hologram.java b/src/main/java/com/songoda/epicfurnaces/hologram/Hologram.java
index ff71262..b411e1c 100644
--- a/src/main/java/com/songoda/epicfurnaces/hologram/Hologram.java
+++ b/src/main/java/com/songoda/epicfurnaces/hologram/Hologram.java
@@ -4,7 +4,7 @@ import com.songoda.epicfurnaces.EpicFurnaces;
 import com.songoda.epicfurnaces.furnace.Furnace;
 import com.songoda.epicfurnaces.utils.Methods;
 import org.bukkit.Location;
-import org.bukkit.Material;
+import org.bukkit.block.BlockState;
 
 import java.util.ArrayList;
 
@@ -52,7 +52,16 @@ public abstract class Hologram {
 
     private void format(Furnace furnace, Action action) {
 
-        org.bukkit.block.Furnace furnaceBlock = ((org.bukkit.block.Furnace) furnace.getLocation().getBlock().getState());
+        Location location = furnace.getLocation();
+
+        if (!location.getWorld().isChunkLoaded(location.getBlockX() >> 4, location.getBlockZ() >> 4))
+            return;
+
+        BlockState state = furnace.getLocation().getBlock().getState();
+
+        if (!(state instanceof org.bukkit.block.Furnace)) return;
+
+        org.bukkit.block.Furnace furnaceBlock = ((org.bukkit.block.Furnace) state);
 
         int performance = (furnaceBlock.getCookTime() - furnace.getPerformanceTotal()) <= 0 ? 0 : furnace.getPerformanceTotal();
 
@@ -90,8 +99,6 @@ public abstract class Hologram {
         lines.add(progress);
         lines.add(stats);
 
-        Location location = furnace.getLocation();
-
         switch (action) {
             case UPDATE:
                 update(location, lines);
diff --git a/src/main/java/com/songoda/epicfurnaces/tasks/FurnaceTask.java b/src/main/java/com/songoda/epicfurnaces/tasks/FurnaceTask.java
index c0dd171..d5652f3 100644
--- a/src/main/java/com/songoda/epicfurnaces/tasks/FurnaceTask.java
+++ b/src/main/java/com/songoda/epicfurnaces/tasks/FurnaceTask.java
@@ -8,6 +8,7 @@ import org.bukkit.Material;
 import org.bukkit.Particle;
 import org.bukkit.block.Block;
 import org.bukkit.block.BlockFace;
+import org.bukkit.block.BlockState;
 import org.bukkit.scheduler.BukkitRunnable;
 
 import java.util.concurrent.ThreadLocalRandom;
@@ -50,10 +51,11 @@ public class FurnaceTask extends BukkitRunnable {
                 continue;
             }
 
-            if (!furnace.getLocation().getBlock().getType().name().contains("FURNACE"))
-                continue;
+            BlockState state = furnace.getLocation().getBlock().getState();
 
-            if (((org.bukkit.block.Furnace) furnaceLocation.getBlock().getState()).getBurnTime() == 0) continue;
+            if (!(state instanceof org.bukkit.block.Furnace)) return;
+
+            if (((org.bukkit.block.Furnace) state).getBurnTime() == 0) continue;
 
             if (furnace.getLevel().getOverheat() != 0) {
                 overheat(furnace);