diff --git a/build.gradle.kts b/build.gradle.kts
index b77fa28..e1818f2 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -66,7 +66,7 @@ tasks.compileJava.configure {
     options.release.set(8)
 }
 
-version = "2.9.12-SNAPSHOT-01"
+version = "2.9.12a"
 
 tasks.named<Copy>("processResources") {
     filesMatching("plugin.yml") {
diff --git a/src/main/java/main/java/me/dniym/checks/BadPotionCheck.java b/src/main/java/main/java/me/dniym/checks/BadPotionCheck.java
index 2503af4..2694806 100644
--- a/src/main/java/main/java/me/dniym/checks/BadPotionCheck.java
+++ b/src/main/java/main/java/me/dniym/checks/BadPotionCheck.java
@@ -75,9 +75,17 @@ public static boolean isInvalidPotion(@NotNull Projectile proj) {
 			 if (p != null && Protections.AllowBypass.isEnabled() && p.hasPermission("illegalstack.enchantbypass")) 
 	                return false;
 	            
+			 PotionMeta potion = null;
+			 
+			 if(IllegalStack.isPaperServer()) 
+				 potion = (PotionMeta) tp.getPotionMeta();
+			  else 
+				  potion = (PotionMeta) tp.getItem().getItemMeta();
 			 
-			 PotionMeta potion = (PotionMeta) tp.getPotionMeta();
 	         PotionData pd = potion.getBasePotionData();
+	         
+	         PotionType pt = null;
+	         
 	         if (pd.getType() == PotionType.UNCRAFTABLE || (potion.hasCustomEffects() && !potion
 	                    .getCustomEffects()
 	                    .isEmpty())) {
diff --git a/src/main/java/main/java/me/dniym/enums/Protections.java b/src/main/java/main/java/me/dniym/enums/Protections.java
index 1efdf4c..6160fbd 100644
--- a/src/main/java/main/java/me/dniym/enums/Protections.java
+++ b/src/main/java/main/java/me/dniym/enums/Protections.java
@@ -750,7 +750,7 @@ public enum Protections {
             35,
             true,
             "Prevent Invalid Potions",
-            "> 1.11",
+            "1.11, 1.12, 1.13, 1.14, 1.15, 1.16, 1.17, 1.18, 1.19",
             "Exploits.Other.PreventInvalidPotions",
             "Prevents non-opped players from possessing invalid / uncraftable potions.  Typically these are used for malicious purposes on creative servers such as potions of instant death",
             "",
diff --git a/src/main/java/main/java/me/dniym/listeners/fListener.java b/src/main/java/main/java/me/dniym/listeners/fListener.java
index 9ad7706..cc6b2eb 100644
--- a/src/main/java/main/java/me/dniym/listeners/fListener.java
+++ b/src/main/java/main/java/me/dniym/listeners/fListener.java
@@ -297,7 +297,7 @@ public fListener(IllegalStack plugin) {
             }
         }
 
-        if (!ver.contains("v1_14") && !ver.contains("v1_15") && !ver.contains("v1_16") && !ver.contains("v1_17") && !ver.contains("v1_18") && !ver.contains("V1_19") && !ver.contains("v1_20")) {
+        if (!ver.contains("v1_14") && !ver.contains("v1_15") && !ver.contains("v1_16") && !ver.contains("v1_17") && !ver.contains("v1_18") && !ver.contains("V1_19") && !ver.contains("v1_20") && !ver.contains("V1_21")) {
             if (ver.contains("v1_13")) {
                 LOGGER.info("MC Version 1.13+ detected!");