diff --git a/src/main/java/com/gamingmesh/jobs/PlayerManager.java b/src/main/java/com/gamingmesh/jobs/PlayerManager.java
index f18a14d3..87913c5d 100644
--- a/src/main/java/com/gamingmesh/jobs/PlayerManager.java
+++ b/src/main/java/com/gamingmesh/jobs/PlayerManager.java
@@ -1087,7 +1087,7 @@ public class PlayerManager {
 
     @Deprecated
     public boolean containsItemBoostByNBT(ItemStack item) {
-        return containsItemBoostByNBT(item);
+        return ItemBoostManager.containsItemBoostByNBT(item);
     }
 
     @Deprecated
diff --git a/src/main/resources/jobs/_EXAMPLE.yml b/src/main/resources/jobs/_EXAMPLE.yml
index 6bcc5bde..e7164aed 100644
--- a/src/main/resources/jobs/_EXAMPLE.yml
+++ b/src/main/resources/jobs/_EXAMPLE.yml
@@ -101,15 +101,8 @@ exampleJob:
   # GUI icon information when using GUI function
   Gui:
     # name of the material
-    # You can use the custom player head:
-    # Item: player_head
-    #   CustomSkull: Notch
-    Item: LOG:2
-
-    # enchants in the item
-    Enchantments:
-    - 'DURABILITY:1'
-
+    ItemStack: oaklog;DURABILITY:1
+    
     # The number of slot where to put this material in gui.
     slot: 2
 
diff --git a/src/main/resources/jobs/brewer.yml b/src/main/resources/jobs/brewer.yml
index 87ba3db0..382cdd58 100644
--- a/src/main/resources/jobs/brewer.yml
+++ b/src/main/resources/jobs/brewer.yml
@@ -28,7 +28,7 @@ Brewer:
       - Brew some stuff and get money
       - Get 100 for this!
   Gui:
-    Item: brewing_stand
+    ItemStack: brewing_stand
   Brew:
     nether_wart:
       income: 6.0
diff --git a/src/main/resources/jobs/builder.yml b/src/main/resources/jobs/builder.yml
index 5bc92a8b..e9cdfadf 100644
--- a/src/main/resources/jobs/builder.yml
+++ b/src/main/resources/jobs/builder.yml
@@ -28,7 +28,7 @@ Builder:
       - Place blocks and get money
       - Get 100 for this!
   Gui:
-    Item: brick_stairs
+    ItemStack: brick_stairs
   Place:
     stone:
       income: 1.3
diff --git a/src/main/resources/jobs/crafter.yml b/src/main/resources/jobs/crafter.yml
index 5b16981e..caee466c 100644
--- a/src/main/resources/jobs/crafter.yml
+++ b/src/main/resources/jobs/crafter.yml
@@ -28,7 +28,7 @@ Crafter:
       - Craft and get money
       - Get 100 for this!
   Gui:
-    Item: crafting_table
+    ItemStack: crafting_table
   Craft:
     stick:
       income: 0.1
diff --git a/src/main/resources/jobs/digger.yml b/src/main/resources/jobs/digger.yml
index 67ff4a23..543b277f 100644
--- a/src/main/resources/jobs/digger.yml
+++ b/src/main/resources/jobs/digger.yml
@@ -28,7 +28,7 @@ Digger:
       - Dig blocks and get money
       - Get 100 for this!
   Gui:
-    Item: wooden_shovel
+    ItemStack: wooden_shovel
   Break:
     red_sand:
       income: 1
diff --git a/src/main/resources/jobs/enchanter.yml b/src/main/resources/jobs/enchanter.yml
index aa5a45c2..3f59cedd 100644
--- a/src/main/resources/jobs/enchanter.yml
+++ b/src/main/resources/jobs/enchanter.yml
@@ -28,7 +28,7 @@ Enchanter:
       - Be a wizard and get money
       - Get 100 for this!
   Gui:
-    Item: enchanting_table
+    ItemStack: enchanting_table
   Enchant:
     wood_sword:
       income: 1.5
diff --git a/src/main/resources/jobs/explorer.yml b/src/main/resources/jobs/explorer.yml
index 120a74b0..fb9cc356 100644
--- a/src/main/resources/jobs/explorer.yml
+++ b/src/main/resources/jobs/explorer.yml
@@ -26,7 +26,7 @@ Explorer:
       - Go on a trip and get money
       - Get 100 for this!
   Gui:
-    Item: leather_boots
+    ItemStack: leather_boots
   Explore:
     '1':
       income: 5.0
diff --git a/src/main/resources/jobs/farmer.yml b/src/main/resources/jobs/farmer.yml
index 34599b1b..a70bfadb 100644
--- a/src/main/resources/jobs/farmer.yml
+++ b/src/main/resources/jobs/farmer.yml
@@ -28,7 +28,7 @@ Farmer:
       - Be a farmer and get money
       - Get 100 for this!
   Gui:
-    Item: wooden_hoe
+    ItemStack: wooden_hoe
   Tame:
     Wolf:
       income: 5.0
diff --git a/src/main/resources/jobs/fisherman.yml b/src/main/resources/jobs/fisherman.yml
index af56f6d6..1e7de2c4 100644
--- a/src/main/resources/jobs/fisherman.yml
+++ b/src/main/resources/jobs/fisherman.yml
@@ -28,7 +28,7 @@ Fisherman:
       - Catch fish and get money
       - Get 100 for this!
   Gui:
-    Item: fishing_rod
+    ItemStack: fishing_rod
   Fish:
     cod:
       income: 15.0
diff --git a/src/main/resources/jobs/hunter.yml b/src/main/resources/jobs/hunter.yml
index c2ce0684..f98b7d71 100644
--- a/src/main/resources/jobs/hunter.yml
+++ b/src/main/resources/jobs/hunter.yml
@@ -28,7 +28,7 @@ Hunter:
       - Kill everything what moves and get money
       - Get 100 for this!
   Gui:
-    Item: bow
+    ItemStack: bow
   Tame:
     Wolf:
       income: 20.0
diff --git a/src/main/resources/jobs/miner.yml b/src/main/resources/jobs/miner.yml
index 4cdbcdfa..82656be3 100644
--- a/src/main/resources/jobs/miner.yml
+++ b/src/main/resources/jobs/miner.yml
@@ -28,7 +28,7 @@ Miner:
       - Break blocks and get money
       - Get 100 for this!
   Gui:
-    Item: wooden_pickaxe
+    ItemStack: wooden_pickaxe
   TNTBreak:
     stone:
       income: 0.25
diff --git a/src/main/resources/jobs/weaponsmith.yml b/src/main/resources/jobs/weaponsmith.yml
index 64e3634c..11497a37 100644
--- a/src/main/resources/jobs/weaponsmith.yml
+++ b/src/main/resources/jobs/weaponsmith.yml
@@ -28,7 +28,7 @@ Weaponsmith:
       - Craft weapons and get money
       - Get 100 for this!
   Gui:
-    Item: crafting_table
+    ItemStack: crafting_table
   Craft:
     wooden_sword:
       income: 1.0
diff --git a/src/main/resources/jobs/woodcutter.yml b/src/main/resources/jobs/woodcutter.yml
index 64dc4680..e6adc574 100644
--- a/src/main/resources/jobs/woodcutter.yml
+++ b/src/main/resources/jobs/woodcutter.yml
@@ -28,7 +28,7 @@ Woodcutter:
       - Break logs and get money
       - Get 100 for this!
   Gui:
-    Item: birch_log
+    ItemStack: birch_log
   Break:
     materials:
     - oak_log;1.0;1.0;1.0