diff --git a/build.gradle b/build.gradle
index 3b767b6..d7b8174 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@ plugins {
 }
 
 group = 'net.momirealms'
-version = '3.0.6-hotfix'
+version = '3.0.6-hotfix2'
 
 repositories {
     mavenCentral()
diff --git a/src/main/java/net/momirealms/customcrops/api/object/sprinkler/SprinklerConfig.java b/src/main/java/net/momirealms/customcrops/api/object/sprinkler/SprinklerConfig.java
index 4485d3d..d3e8b09 100644
--- a/src/main/java/net/momirealms/customcrops/api/object/sprinkler/SprinklerConfig.java
+++ b/src/main/java/net/momirealms/customcrops/api/object/sprinkler/SprinklerConfig.java
@@ -37,7 +37,7 @@ public class SprinklerConfig {
     private final WaterAmountHologram waterAmountHologram;
     private final SprinklerAnimation sprinklerAnimation;
 
-    public SprinklerConfig(String key, int storage, int range, @Nullable Sound sound, @NotNull ItemMode itemMode, @NotNull String threeD, @NotNull String twoD,
+    public SprinklerConfig(String key, int storage, int range, @Nullable Sound sound, @NotNull ItemMode itemMode, @NotNull String threeD, @Nullable String twoD,
                            @NotNull PassiveFillMethod[] passiveFillMethods, @Nullable WaterAmountHologram waterAmountHologram, SprinklerAnimation sprinklerAnimation) {
         this.key = key;
         this.storage = storage;
@@ -78,7 +78,7 @@ public class SprinklerConfig {
         return threeD;
     }
 
-    @NotNull
+    @Nullable
     public String getTwoD() {
         return twoD;
     }
diff --git a/src/main/java/net/momirealms/customcrops/api/object/sprinkler/SprinklerManager.java b/src/main/java/net/momirealms/customcrops/api/object/sprinkler/SprinklerManager.java
index b74acc8..a18d579 100644
--- a/src/main/java/net/momirealms/customcrops/api/object/sprinkler/SprinklerManager.java
+++ b/src/main/java/net/momirealms/customcrops/api/object/sprinkler/SprinklerManager.java
@@ -83,8 +83,8 @@ public class SprinklerManager extends Function implements Listener {
                 if (sprinklerSec == null) continue;
                 String twoD = sprinklerSec.getString("2D-item");
                 String threeD = sprinklerSec.getString("3D-item");
-                if (twoD == null || threeD == null) {
-                    AdventureUtils.consoleMessage("<red>[CustomCrops] 2/3D-item is not set for sprinkler: " + key);
+                if (threeD == null) {
+                    AdventureUtils.consoleMessage("<red>[CustomCrops] 3D-item is not set for sprinkler: " + key);
                     continue;
                 }
                 PassiveFillMethod[] methods = ConfigUtils.getPassiveFillMethods(sprinklerSec.getConfigurationSection("fill-method"));
@@ -129,7 +129,7 @@ public class SprinklerManager extends Function implements Listener {
                         ) : null
                         );
                 this.itemToKey.put(threeD, key);
-                this.itemToKey.put(twoD, key);
+                if (twoD != null) this.itemToKey.put(twoD, key);
                 this.sprinklerConfigMap.put(key, sprinklerConfig);
             }
         }
@@ -161,6 +161,7 @@ public class SprinklerManager extends Function implements Listener {
         String key = itemToKey.get(id);
         if (key == null) return;
         String twoD = sprinklerConfigMap.get(key).getTwoD();
+        if (twoD == null) return;
         ItemStack itemStack = plugin.getPlatformInterface().getItemStack(twoD);
         if (itemStack == null) {
             AdventureUtils.consoleMessage("<red>[CustomCrops] 2D sprinkler " + twoD + " doesn't exist");
diff --git a/src/main/resources/contents/sprinklers/default.yml b/src/main/resources/contents/sprinklers/default.yml
index 2f78950..06edf88 100644
--- a/src/main/resources/contents/sprinklers/default.yml
+++ b/src/main/resources/contents/sprinklers/default.yml
@@ -9,6 +9,7 @@ sprinkler_1:
   storage: 4
   # 2/3D物品
   3D-item: customcrops:sprinkler_1
+  # Optional, remove this section if you don't need 2d items
   2D-item: customcrops:sprinkler_1_item
   # ITEM_FRAME / TRIPWIRE / ITEM_DISPLAY (1.19.4+)
   # Sprinkler item type