diff --git a/pom.xml b/pom.xml
index 134ac2c2..fab5d6de 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>Jobs</groupId>
 	<artifactId>jobs</artifactId>
-	<version>4.5.1</version>
+	<version>4.7.2</version>
 	<name>Jobs</name>
 	<url>http://maven.apache.org</url>
 	<properties>
@@ -16,7 +16,7 @@
 		<dependency>
 			<groupId>org.spigotmc</groupId>
 			<artifactId>spigot-api</artifactId>
-			<version>1.12-R0.1-SNAPSHOT</version>
+			<version>1.13-R0.1-SNAPSHOT</version>
 			<scope>provided</scope>
 		</dependency>
 		<!-- iConomy7 -->
diff --git a/src/main/java/com/gamingmesh/jobs/CMILib/ItemManager.java b/src/main/java/com/gamingmesh/jobs/CMILib/ItemManager.java
index 92283bba..844fd7f4 100644
--- a/src/main/java/com/gamingmesh/jobs/CMILib/ItemManager.java
+++ b/src/main/java/com/gamingmesh/jobs/CMILib/ItemManager.java
@@ -18,6 +18,7 @@ import org.bukkit.inventory.Recipe;
 import org.bukkit.inventory.meta.SkullMeta;
 
 import com.gamingmesh.jobs.Jobs;
+import com.gamingmesh.jobs.stuff.Debug;
 import com.gamingmesh.jobs.stuff.VersionChecker.Version;
 
 public class ItemManager {
@@ -26,10 +27,10 @@ public class ItemManager {
     static HashMap<String, CMIItemStack> byBukkitName = new HashMap<>();
     static HashMap<String, CMIItemStack> byMojangName = new HashMap<>();
     static HashMap<CMIMaterial, CMIItemStack> byMaterial = new HashMap<>();
-    static Version version;
+    static final Version version = Jobs.getVersionCheckManager().getVersion();
 
     public static void load() {
-	version = Jobs.getVersionCheckManager().getVersion();
+
 	for (CMIMaterial one : CMIMaterial.values()) {
 	    if (one == null)
 		continue;
@@ -2187,13 +2188,17 @@ public class ItemManager {
 	}
 
 	public static boolean isDye(Material mat) {
+	    Debug.D("ss1");
 	    CMIMaterial m = CMIMaterial.get(mat);
+	    Debug.D("ss2");
 	    if (m == null)
 		return false;
+	    Debug.D("ss3");
 	    return m.isDye();
 	}
 
 	public boolean isDye() {
+	    Debug.D("ss4");
 	    switch (this) {
 	    case INK_SAC:
 	    case ROSE_RED:
@@ -2254,70 +2259,7 @@ public class ItemManager {
 	}
 
 	public static SlabType getSlabType(Block block) {
-	    if (!isSlab(block.getType()))
-		return SlabType.NOTSLAB;
-
-	    if (Jobs.getVersionCheckManager().getVersion().isEqualOrHigher(Version.v1_13_R1)) {
-		if (block.getBlockData() instanceof org.bukkit.block.data.type.Slab) {
-		    org.bukkit.block.data.type.Slab slab = (org.bukkit.block.data.type.Slab) block.getBlockData();
-		    switch (slab.getType()) {
-		    case TOP:
-			return SlabType.TOP;
-		    case BOTTOM:
-			return SlabType.BOTTOM;
-		    case DOUBLE:
-			return SlabType.DOUBLE;
-		    }
-
-		}
-		return SlabType.NOTSLAB;
-	    }
-	    s: if (block.getType().name().contains("STEP")) {
-		switch (CMIMaterial.get(block).getLegacyId()) {
-		case 44:
-		    switch (block.getData()) {
-		    case 0:
-		    case 1:
-		    case 2:
-		    case 3:
-		    case 4:
-		    case 5:
-		    case 6:
-		    case 7:
-			return SlabType.BOTTOM;
-		    default:
-			return SlabType.DOUBLE;
-		    }
-		case 126:
-		    switch (block.getData()) {
-		    case 0:
-		    case 1:
-		    case 2:
-		    case 3:
-		    case 4:
-		    case 5:
-			return SlabType.BOTTOM;
-		    default:
-			return SlabType.DOUBLE;
-		    }
-		case 182:
-		    switch (block.getData()) {
-		    case 0:
-			return SlabType.BOTTOM;
-		    default:
-			return SlabType.DOUBLE;
-		    }
-		case 205:
-		    switch (block.getData()) {
-		    case 0:
-			return SlabType.BOTTOM;
-		    default:
-			return SlabType.DOUBLE;
-		    }
-		}
-	    }
-
-	    return SlabType.NOTSLAB;
+	    return checkSlab(block);
 	}
 
 	public boolean equals(Material mat) {
@@ -2355,6 +2297,71 @@ public class ItemManager {
 	}
     }
 
+    private static SlabType checkSlab(Block block) throws NoClassDefFoundError {
+	if (!CMIMaterial.isSlab(block.getType()))
+	    return SlabType.NOTSLAB;
+
+	if (version.isEqualOrHigher(Version.v1_13_R1)) {
+	    if (block.getBlockData() instanceof org.bukkit.block.data.type.Slab) {
+		org.bukkit.block.data.type.Slab slab = (org.bukkit.block.data.type.Slab) block.getBlockData();
+		org.bukkit.block.data.type.Slab.Type t = slab.getType();
+		if (t.equals(org.bukkit.block.data.type.Slab.Type.TOP))
+		    return SlabType.TOP;
+		if (t.equals(org.bukkit.block.data.type.Slab.Type.BOTTOM))
+		    return SlabType.BOTTOM;
+		if (t.equals(org.bukkit.block.data.type.Slab.Type.DOUBLE))
+		    return SlabType.DOUBLE;
+	    }
+	    return SlabType.NOTSLAB;
+	}
+	if (block.getType().name().contains("STEP")) {
+	    switch (CMIMaterial.get(block).getLegacyId()) {
+	    case 44:
+		switch (block.getData()) {
+		case 0:
+		case 1:
+		case 2:
+		case 3:
+		case 4:
+		case 5:
+		case 6:
+		case 7:
+		    return SlabType.BOTTOM;
+		default:
+		    return SlabType.DOUBLE;
+		}
+	    case 126:
+		switch (block.getData()) {
+		case 0:
+		case 1:
+		case 2:
+		case 3:
+		case 4:
+		case 5:
+		    return SlabType.BOTTOM;
+		default:
+		    return SlabType.DOUBLE;
+		}
+	    case 182:
+		switch (block.getData()) {
+		case 0:
+		    return SlabType.BOTTOM;
+		default:
+		    return SlabType.DOUBLE;
+		}
+	    case 205:
+		switch (block.getData()) {
+		case 0:
+		    return SlabType.BOTTOM;
+		default:
+		    return SlabType.DOUBLE;
+		}
+	    }
+	}
+
+	return SlabType.NOTSLAB;
+    }
+
     public enum SlabType {
 	TOP,
 	BOTTOM,
diff --git a/src/main/java/com/gamingmesh/jobs/listeners/JobsPaymentListener.java b/src/main/java/com/gamingmesh/jobs/listeners/JobsPaymentListener.java
index 93ef7b41..403e5767 100644
--- a/src/main/java/com/gamingmesh/jobs/listeners/JobsPaymentListener.java
+++ b/src/main/java/com/gamingmesh/jobs/listeners/JobsPaymentListener.java
@@ -574,6 +574,7 @@ public class JobsPaymentListener implements Listener {
 	    if (sourceItems[i] == null)
 		continue;
 
+	    Debug.D("ss");
 	    if (CMIMaterial.isDye(sourceItems[i].getType()))
 		DyeStack.add(sourceItems[i]);
 
diff --git a/src/main/java/com/gamingmesh/jobs/stuff/VersionChecker.java b/src/main/java/com/gamingmesh/jobs/stuff/VersionChecker.java
index 7fbe78f7..f20a039d 100644
--- a/src/main/java/com/gamingmesh/jobs/stuff/VersionChecker.java
+++ b/src/main/java/com/gamingmesh/jobs/stuff/VersionChecker.java
@@ -92,8 +92,8 @@ public class VersionChecker {
 	    return getValue() >= version.getValue();
 	}
 
-	public static boolean isCurrentEqualOrHigher(Version version) {
-	    return version.getValue() >= version.getValue();
+	public static boolean isCurrentEqualOrHigher(Version v) {
+	    return version.getValue() >= v.getValue();
 	}
     }