diff --git a/src/main/scala/io/izzel/taboolib/module/lite/SimpleReflection.java b/src/main/scala/io/izzel/taboolib/module/lite/SimpleReflection.java
index 60c92c2..52c642e 100644
--- a/src/main/scala/io/izzel/taboolib/module/lite/SimpleReflection.java
+++ b/src/main/scala/io/izzel/taboolib/module/lite/SimpleReflection.java
@@ -2,7 +2,6 @@ package io.izzel.taboolib.module.lite;
 
 import com.google.common.collect.Maps;
 import io.izzel.taboolib.TabooLibAPI;
-import io.izzel.taboolib.module.locale.logger.TLogger;
 import io.izzel.taboolib.util.Ref;
 
 import java.lang.reflect.Field;
@@ -65,7 +64,7 @@ public class SimpleReflection {
     public static void setFieldValue(Class<?> nmsClass, Object instance, String fieldName, Object value) {
         Map<String, Field> fields = fieldCached.get(nmsClass.getName());
         if (fields == null) {
-            TLogger.getGlobalLogger().error("Field Not Found: " + nmsClass.getName());
+            return;
         }
         Field field = fields.get(fieldName);
         if (value == null) {
@@ -81,7 +80,7 @@ public class SimpleReflection {
     public static Object getFieldValue(Class<?> nmsClass, Object instance, String fieldName) {
         Map<String, Field> fields = fieldCached.get(nmsClass.getName());
         if (fields == null) {
-            TLogger.getGlobalLogger().error("Field Not Found: " + nmsClass.getName());
+            return null;
         }
         Field field = fields.get(fieldName);
         if (field == null) {
@@ -99,7 +98,7 @@ public class SimpleReflection {
     public static <T> T getFieldValue(Class<?> nmsClass, Object instance, String fieldName, T def) {
         Map<String, Field> fields = fieldCached.get(nmsClass.getName());
         if (fields == null) {
-            TLogger.getGlobalLogger().error("Field Not Found: " + nmsClass.getName());
+            return null;
         }
         Field field = fields.get(fieldName);
         if (field == null) {
diff --git a/src/main/scala/io/izzel/taboolib/util/Ref.java b/src/main/scala/io/izzel/taboolib/util/Ref.java
index 367ff03..983c075 100644
--- a/src/main/scala/io/izzel/taboolib/util/Ref.java
+++ b/src/main/scala/io/izzel/taboolib/util/Ref.java
@@ -1,5 +1,6 @@
 package io.izzel.taboolib.util;
 
+import com.google.common.base.Preconditions;
 import com.google.gson.annotations.SerializedName;
 import io.izzel.taboolib.TabooLib;
 import io.izzel.taboolib.TabooLibAPI;
@@ -56,6 +57,7 @@ public class Ref {
     }
 
     public static void putField(Object src, Field field, Object value) {
+        Preconditions.checkNotNull(field);
         if (Modifier.isStatic(field.getModifiers())) {
             Object base = getUnsafe().staticFieldBase(field);
             long offset = getUnsafe().staticFieldOffset(field);
@@ -97,6 +99,8 @@ public class Ref {
     }
 
     public static Object getField(Object src, Field field) {
+        Preconditions.checkNotNull(field);
+        getUnsafe().ensureClassInitialized(field.getDeclaringClass());
         if (Modifier.isStatic(field.getModifiers())) {
             Object base = getUnsafe().staticFieldBase(field);
             long offset = getUnsafe().staticFieldOffset(field);
diff --git a/src/main/scala/io/izzel/taboolib/util/item/MapBuilder.java b/src/main/scala/io/izzel/taboolib/util/item/MapBuilder.java
index 2e6d65c..431bda2 100644
--- a/src/main/scala/io/izzel/taboolib/util/item/MapBuilder.java
+++ b/src/main/scala/io/izzel/taboolib/util/item/MapBuilder.java
@@ -1,5 +1,6 @@
 package io.izzel.taboolib.util.item;
 
+import io.izzel.taboolib.util.Reflection;
 import org.bukkit.Bukkit;
 import org.bukkit.Material;
 import org.bukkit.entity.Player;
@@ -161,7 +162,10 @@ public class MapBuilder {
 
         if (isNewVersion) {
             MapMeta mapMeta = (MapMeta) item.getItemMeta();
-            mapMeta.setMapView(map);
+            try {
+                Reflection.invokeMethod(mapMeta, "setMapView", map);
+            } catch (Throwable ignored) {
+            }
             item.setItemMeta(mapMeta);
         } else {
             item.setDurability(getMapId(map));