diff --git a/src/main/java/com/bgsoftware/wildloaders/WildLoadersPlugin.java b/src/main/java/com/bgsoftware/wildloaders/WildLoadersPlugin.java
index 27968c0..f363e7b 100644
--- a/src/main/java/com/bgsoftware/wildloaders/WildLoadersPlugin.java
+++ b/src/main/java/com/bgsoftware/wildloaders/WildLoadersPlugin.java
@@ -93,6 +93,10 @@ public final class WildLoadersPlugin extends JavaPlugin implements WildLoaders {
         String version = getServer().getClass().getPackage().getName().split("\\.")[3];
         try {
             nmsAdapter = (NMSAdapter) Class.forName(String.format("com.bgsoftware.wildloaders.nms.%s.NMSAdapter", version)).newInstance();
+            if (!nmsAdapter.isMappingsSupported()) {
+                log("WildLoaders does not support your version mappings... Please contact @Ome_R");
+                shouldEnable = false;
+            }
         } catch (ClassNotFoundException | InstantiationException | IllegalAccessException ex) {
             shouldEnable = false;
             log("Couldn't load up with an adapter " + version + ". Please contact @Ome_R");
diff --git a/src/main/java/com/bgsoftware/wildloaders/nms/NMSAdapter.java b/src/main/java/com/bgsoftware/wildloaders/nms/NMSAdapter.java
index db77701..94c2a0a 100644
--- a/src/main/java/com/bgsoftware/wildloaders/nms/NMSAdapter.java
+++ b/src/main/java/com/bgsoftware/wildloaders/nms/NMSAdapter.java
@@ -10,6 +10,8 @@ import java.util.UUID;
 
 public interface NMSAdapter {
 
+    boolean isMappingsSupported();
+
     String getTag(ItemStack itemStack, String key, String def);
 
     ItemStack setTag(ItemStack itemStack, String key, String value);
diff --git a/v1_12_R1/src/main/java/com/bgsoftware/wildloaders/nms/v1_12_R1/NMSAdapter.java b/v1_12_R1/src/main/java/com/bgsoftware/wildloaders/nms/v1_12_R1/NMSAdapter.java
index 59318e9..3b4129d 100644
--- a/v1_12_R1/src/main/java/com/bgsoftware/wildloaders/nms/v1_12_R1/NMSAdapter.java
+++ b/v1_12_R1/src/main/java/com/bgsoftware/wildloaders/nms/v1_12_R1/NMSAdapter.java
@@ -31,6 +31,11 @@ public final class NMSAdapter implements com.bgsoftware.wildloaders.nms.NMSAdapt
 
     private static final ReflectMethod<Void> TILE_ENTITY_LOAD = new ReflectMethod<>(TileEntity.class, "load", NBTTagCompound.class);
 
+    @Override
+    public boolean isMappingsSupported() {
+        return true;
+    }
+
     @Override
     public String getTag(org.bukkit.inventory.ItemStack itemStack, String key, String def) {
         ItemStack nmsItem = CraftItemStack.asNMSCopy(itemStack);
diff --git a/v1_16_R3/src/main/java/com/bgsoftware/wildloaders/nms/v1_16_R3/NMSAdapter.java b/v1_16_R3/src/main/java/com/bgsoftware/wildloaders/nms/v1_16_R3/NMSAdapter.java
index fd84224..5c7e53e 100644
--- a/v1_16_R3/src/main/java/com/bgsoftware/wildloaders/nms/v1_16_R3/NMSAdapter.java
+++ b/v1_16_R3/src/main/java/com/bgsoftware/wildloaders/nms/v1_16_R3/NMSAdapter.java
@@ -29,6 +29,11 @@ public final class NMSAdapter implements com.bgsoftware.wildloaders.nms.NMSAdapt
 
     private static final WildLoadersPlugin plugin = WildLoadersPlugin.getPlugin();
 
+    @Override
+    public boolean isMappingsSupported() {
+        return true;
+    }
+
     @Override
     public String getTag(org.bukkit.inventory.ItemStack itemStack, String key, String def) {
         ItemStack nmsItem = CraftItemStack.asNMSCopy(itemStack);
diff --git a/v1_17_R1/src/main/java/com/bgsoftware/wildloaders/nms/v1_17_R1/NMSAdapter.java b/v1_17_R1/src/main/java/com/bgsoftware/wildloaders/nms/v1_17_R1/NMSAdapter.java
index 1dad0c2..fcd5b20 100644
--- a/v1_17_R1/src/main/java/com/bgsoftware/wildloaders/nms/v1_17_R1/NMSAdapter.java
+++ b/v1_17_R1/src/main/java/com/bgsoftware/wildloaders/nms/v1_17_R1/NMSAdapter.java
@@ -27,6 +27,7 @@ import org.bukkit.craftbukkit.v1_17_R1.CraftChunk;
 import org.bukkit.craftbukkit.v1_17_R1.CraftServer;
 import org.bukkit.craftbukkit.v1_17_R1.CraftWorld;
 import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_17_R1.util.CraftMagicNumbers;
 
 import java.util.UUID;
 
@@ -38,6 +39,13 @@ public final class NMSAdapter implements com.bgsoftware.wildloaders.nms.NMSAdapt
     private static final ReflectMethod<TickingBlockEntity> CREATE_TICKING_BLOCK = new ReflectMethod<>(
             Chunk.class, "a", TileEntity.class, BlockEntityTicker.class);
 
+    private static final String BUILT_AGAINST_MAPPING = "acd6e6c27e5a0a9440afba70a96c27c9";
+
+    @Override
+    public boolean isMappingsSupported() {
+        return ((CraftMagicNumbers) CraftMagicNumbers.INSTANCE).getMappingsVersion().equals(BUILT_AGAINST_MAPPING);
+    }
+
     @Override
     public String getTag(org.bukkit.inventory.ItemStack itemStack, String key, String def) {
         ItemStack nmsItem = CraftItemStack.asNMSCopy(itemStack);
diff --git a/v1_18_R1/src/main/java/com/bgsoftware/wildloaders/nms/v1_18_R1/NMSAdapter.java b/v1_18_R1/src/main/java/com/bgsoftware/wildloaders/nms/v1_18_R1/NMSAdapter.java
index 56ecf76..ed5b2c7 100644
--- a/v1_18_R1/src/main/java/com/bgsoftware/wildloaders/nms/v1_18_R1/NMSAdapter.java
+++ b/v1_18_R1/src/main/java/com/bgsoftware/wildloaders/nms/v1_18_R1/NMSAdapter.java
@@ -26,6 +26,7 @@ import org.bukkit.craftbukkit.v1_18_R1.CraftChunk;
 import org.bukkit.craftbukkit.v1_18_R1.CraftServer;
 import org.bukkit.craftbukkit.v1_18_R1.CraftWorld;
 import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_18_R1.util.CraftMagicNumbers;
 
 import java.util.UUID;
 
@@ -39,6 +40,13 @@ public final class NMSAdapter implements com.bgsoftware.wildloaders.nms.NMSAdapt
             net.minecraft.world.level.chunk.Chunk.class, "a",
             net.minecraft.world.level.block.entity.TileEntity.class, BlockEntityTicker.class);
 
+    private static final String BUILT_AGAINST_MAPPING = "20b026e774dbf715e40a0b2afe114792";
+
+    @Override
+    public boolean isMappingsSupported() {
+        return ((CraftMagicNumbers) CraftMagicNumbers.INSTANCE).getMappingsVersion().equals(BUILT_AGAINST_MAPPING);
+    }
+
     @Override
     public String getTag(org.bukkit.inventory.ItemStack itemStack, String key, String def) {
         ItemStack nmsItem = new ItemStack(CraftItemStack.asNMSCopy(itemStack));
diff --git a/v1_18_R2/src/main/java/com/bgsoftware/wildloaders/nms/v1_18_R2/NMSAdapter.java b/v1_18_R2/src/main/java/com/bgsoftware/wildloaders/nms/v1_18_R2/NMSAdapter.java
index fc9ed4a..c82e5e0 100644
--- a/v1_18_R2/src/main/java/com/bgsoftware/wildloaders/nms/v1_18_R2/NMSAdapter.java
+++ b/v1_18_R2/src/main/java/com/bgsoftware/wildloaders/nms/v1_18_R2/NMSAdapter.java
@@ -26,6 +26,7 @@ import org.bukkit.craftbukkit.v1_18_R2.CraftChunk;
 import org.bukkit.craftbukkit.v1_18_R2.CraftServer;
 import org.bukkit.craftbukkit.v1_18_R2.CraftWorld;
 import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_18_R2.util.CraftMagicNumbers;
 
 import java.util.UUID;
 
@@ -39,6 +40,13 @@ public final class NMSAdapter implements com.bgsoftware.wildloaders.nms.NMSAdapt
             net.minecraft.world.level.chunk.Chunk.class, "a",
             net.minecraft.world.level.block.entity.TileEntity.class, BlockEntityTicker.class);
 
+    private static final String BUILT_AGAINST_MAPPING = "eaeedbff51b16ead3170906872fda334";
+
+    @Override
+    public boolean isMappingsSupported() {
+        return ((CraftMagicNumbers) CraftMagicNumbers.INSTANCE).getMappingsVersion().equals(BUILT_AGAINST_MAPPING);
+    }
+
     @Override
     public String getTag(org.bukkit.inventory.ItemStack itemStack, String key, String def) {
         ItemStack nmsItem = new ItemStack(CraftItemStack.asNMSCopy(itemStack));
diff --git a/v1_19_R1/src/main/java/com/bgsoftware/wildloaders/nms/v1_19_R1/NMSAdapter.java b/v1_19_R1/src/main/java/com/bgsoftware/wildloaders/nms/v1_19_R1/NMSAdapter.java
index 05c5906..bb705e9 100644
--- a/v1_19_R1/src/main/java/com/bgsoftware/wildloaders/nms/v1_19_R1/NMSAdapter.java
+++ b/v1_19_R1/src/main/java/com/bgsoftware/wildloaders/nms/v1_19_R1/NMSAdapter.java
@@ -26,6 +26,7 @@ import org.bukkit.craftbukkit.v1_19_R1.CraftChunk;
 import org.bukkit.craftbukkit.v1_19_R1.CraftServer;
 import org.bukkit.craftbukkit.v1_19_R1.CraftWorld;
 import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_19_R1.util.CraftMagicNumbers;
 
 import java.util.UUID;
 
@@ -39,6 +40,13 @@ public final class NMSAdapter implements com.bgsoftware.wildloaders.nms.NMSAdapt
             net.minecraft.world.level.chunk.Chunk.class, "a",
             net.minecraft.world.level.block.entity.TileEntity.class, BlockEntityTicker.class);
 
+    private static final String BUILT_AGAINST_MAPPING = "4cc0cc97cac491651bff3af8b124a214";
+
+    @Override
+    public boolean isMappingsSupported() {
+        return ((CraftMagicNumbers) CraftMagicNumbers.INSTANCE).getMappingsVersion().equals(BUILT_AGAINST_MAPPING);
+    }
+
     @Override
     public String getTag(org.bukkit.inventory.ItemStack itemStack, String key, String def) {
         ItemStack nmsItem = new ItemStack(CraftItemStack.asNMSCopy(itemStack));
diff --git a/v1_7_R4/src/main/java/com/bgsoftware/wildloaders/nms/v1_7_R4/NMSAdapter.java b/v1_7_R4/src/main/java/com/bgsoftware/wildloaders/nms/v1_7_R4/NMSAdapter.java
index 068effe..d08b32b 100644
--- a/v1_7_R4/src/main/java/com/bgsoftware/wildloaders/nms/v1_7_R4/NMSAdapter.java
+++ b/v1_7_R4/src/main/java/com/bgsoftware/wildloaders/nms/v1_7_R4/NMSAdapter.java
@@ -27,6 +27,11 @@ public final class NMSAdapter implements com.bgsoftware.wildloaders.nms.NMSAdapt
 
     private static final WildLoadersPlugin plugin = WildLoadersPlugin.getPlugin();
 
+    @Override
+    public boolean isMappingsSupported() {
+        return true;
+    }
+
     @Override
     public String getTag(org.bukkit.inventory.ItemStack itemStack, String key, String def) {
         ItemStack nmsItem = CraftItemStack.asNMSCopy(itemStack);
diff --git a/v1_8_R3/src/main/java/com/bgsoftware/wildloaders/nms/v1_8_R3/NMSAdapter.java b/v1_8_R3/src/main/java/com/bgsoftware/wildloaders/nms/v1_8_R3/NMSAdapter.java
index a985c8c..0404084 100644
--- a/v1_8_R3/src/main/java/com/bgsoftware/wildloaders/nms/v1_8_R3/NMSAdapter.java
+++ b/v1_8_R3/src/main/java/com/bgsoftware/wildloaders/nms/v1_8_R3/NMSAdapter.java
@@ -27,6 +27,11 @@ public final class NMSAdapter implements com.bgsoftware.wildloaders.nms.NMSAdapt
 
     private static final WildLoadersPlugin plugin = WildLoadersPlugin.getPlugin();
 
+    @Override
+    public boolean isMappingsSupported() {
+        return true;
+    }
+
     @Override
     public String getTag(org.bukkit.inventory.ItemStack itemStack, String key, String def) {
         ItemStack nmsItem = CraftItemStack.asNMSCopy(itemStack);