diff --git a/make_jar.jardesc b/make_jar.jardesc
index cad0ee5..90a0308 100644
--- a/make_jar.jardesc
+++ b/make_jar.jardesc
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <jardesc>
-    <jar path="PandacraftUtils/jar_export/PandacraftUtils-3.0.jar"/>
+    <jar path="PandacraftUtils/jar_export/PandacraftUtils-3.1.jar"/>
     <options buildIfNeeded="true" compress="true" descriptionLocation="/PandacraftUtils/make_jar.jardesc" exportErrors="true" exportWarnings="true" includeDirectoryEntries="false" overwrite="false" saveDescription="true" storeRefactorings="false" useSourceFolders="false"/>
     <storedRefactorings deprecationInfo="true" structuralOnly="false"/>
     <selectedProjects/>
diff --git a/resources/plugin.yml b/resources/plugin.yml
index b6ebc4f..d5e7ea0 100644
--- a/resources/plugin.yml
+++ b/resources/plugin.yml
@@ -1,6 +1,6 @@
 name: PandacraftUtils
 main: net.mc_pandacraft.java.plugin.pandacraftutils.PandacraftUtils
-version: 3.0
+version: 3.1
 
 
 
diff --git a/src/net/mc_pandacraft/java/plugin/pandacraftutils/PandacraftUtils.java b/src/net/mc_pandacraft/java/plugin/pandacraftutils/PandacraftUtils.java
index 8caa0c3..cacfd8f 100644
--- a/src/net/mc_pandacraft/java/plugin/pandacraftutils/PandacraftUtils.java
+++ b/src/net/mc_pandacraft/java/plugin/pandacraftutils/PandacraftUtils.java
@@ -17,7 +17,6 @@ import net.mc_pandacraft.java.plugin.pandacraftutils.modules.cheat_protect.Creat
 import net.mc_pandacraft.java.plugin.pandacraftutils.modules.cheat_protect.NoPvpProtectManager;
 import net.mc_pandacraft.java.plugin.pandacraftutils.players.OnlinePlayerManager;
 
-import org.bukkit.ChatColor;
 import org.bukkit.entity.Player;
 import org.bukkit.plugin.java.JavaPlugin;
 
@@ -73,15 +72,15 @@ public class PandacraftUtils extends JavaPlugin {
 		
 		afkManager = new AfkManager();
 		wESelectionDisplayManager = new WESelectionDisplayManager();
-		commandAliasManager = new CommandAliasManager(this);
-		spawnTimeManager = new SpawnTimeManager(this);
+		commandAliasManager = new CommandAliasManager();
+		spawnTimeManager = new SpawnTimeManager();
 		chatAnalysisManager = new ChatAnalysisManager();
-		creativCheatManager = new CreativCheatManager(this);
-		noPvpProtectManager = new NoPvpProtectManager(this);
-		loginLogoutMessageManager = new LoginLogoutMessageManager(this);
-		calculatorManager = new CalculatorManager(this);
+		creativCheatManager = new CreativCheatManager();
+		noPvpProtectManager = new NoPvpProtectManager();
+		loginLogoutMessageManager = new LoginLogoutMessageManager();
+		calculatorManager = new CalculatorManager();
 		survivalCuboManager = new SurvivalCuboManager();
-		serverPingListener = new PacketOutServerInfoListener(this);
+		serverPingListener = new PacketOutServerInfoListener();
 		staffQueueManager = new StaffQueueManager();
 		tpsAnalysisManager = new TPSAnalysisManager();
 		autoMessagesManager = new AutoMessagesManager();
diff --git a/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/CalculatorManager.java b/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/CalculatorManager.java
index 11162bc..4ae8a5c 100644
--- a/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/CalculatorManager.java
+++ b/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/CalculatorManager.java
@@ -20,15 +20,13 @@ import org.bukkit.event.player.PlayerQuitEvent;
 
 public class CalculatorManager implements Listener {
 	
-	private PandacraftUtils plugin;
+	private PandacraftUtils plugin = PandacraftUtils.getInstance();
 	
 	private Map<Player, List<HistoryElement>> history = new HashMap<Player, List<HistoryElement>>();
 	
 	
 	
-	public CalculatorManager(PandacraftUtils pl) {
-		plugin = pl;
-		
+	public CalculatorManager() {
 		plugin.getServer().getPluginManager().registerEvents(this, plugin);
 		
 		// analyse des joueurs déjà en ligne (/reload)
diff --git a/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/CommandAliasManager.java b/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/CommandAliasManager.java
index 47bff70..87f8e62 100644
--- a/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/CommandAliasManager.java
+++ b/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/CommandAliasManager.java
@@ -13,11 +13,10 @@ import org.bukkit.event.Listener;
 import org.bukkit.event.player.PlayerCommandPreprocessEvent;
 
 public class CommandAliasManager implements Listener {
-	private PandacraftUtils plugin;
+	private PandacraftUtils plugin = PandacraftUtils.getInstance();
 	
 	
-	public CommandAliasManager(PandacraftUtils pl) {
-		plugin = pl;
+	public CommandAliasManager() {
 		plugin.getServer().getPluginManager().registerEvents(this, plugin);
 		
 		
diff --git a/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/LoginLogoutMessageManager.java b/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/LoginLogoutMessageManager.java
index e1c941b..9997125 100644
--- a/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/LoginLogoutMessageManager.java
+++ b/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/LoginLogoutMessageManager.java
@@ -18,13 +18,12 @@ import de.luricos.bukkit.xAuth.events.xAuthLoginEvent;
 
 public class LoginLogoutMessageManager implements Listener {
 
-	private PandacraftUtils plugin;
+	private PandacraftUtils plugin = PandacraftUtils.getInstance();
 	
 	private List<Player> loggedInPlayer = new ArrayList<Player>();
 	
 	
-	public LoginLogoutMessageManager(PandacraftUtils pl) {
-		plugin = pl;
+	public LoginLogoutMessageManager() {
 		
 		plugin.getServer().getPluginManager().registerEvents(this, plugin);
 	}
diff --git a/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/PacketOutServerInfoListener.java b/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/PacketOutServerInfoListener.java
index ba9422c..63b9de6 100644
--- a/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/PacketOutServerInfoListener.java
+++ b/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/PacketOutServerInfoListener.java
@@ -18,11 +18,10 @@ import net.mc_pandacraft.java.plugin.pandacraftutils.PandacraftUtils;
 import net.mc_pandacraft.java.plugin.pandacraftutils.plugin_interface.EssentialsInterface;
 
 public class PacketOutServerInfoListener {
-	private PandacraftUtils plugin;
+	private PandacraftUtils plugin = PandacraftUtils.getInstance();
 	
 	
-	public PacketOutServerInfoListener(PandacraftUtils pl) {
-		plugin = pl;
+	public PacketOutServerInfoListener() {
 		
 		ProtocolLibrary
 			.getProtocolManager()
diff --git a/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/SpawnTimeManager.java b/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/SpawnTimeManager.java
index 64fcc92..ca94516 100644
--- a/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/SpawnTimeManager.java
+++ b/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/SpawnTimeManager.java
@@ -9,15 +9,14 @@ import org.bukkit.scheduler.BukkitRunnable;
 
 public class SpawnTimeManager extends BukkitRunnable {
 
-	private PandacraftUtils plugin;
+	private PandacraftUtils plugin = PandacraftUtils.getInstance();
 	
 	int timeTick = 0;
 	
 	private String initial_map_name = "spawn";
 	
 	
-	public SpawnTimeManager(PandacraftUtils pl) {
-		plugin = pl;
+	public SpawnTimeManager() {
 		run();
         plugin.getServer().getScheduler().runTaskTimer(plugin, this, 1L, 2L);
 	}
diff --git a/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/cheat_protect/CreativCheatManager.java b/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/cheat_protect/CreativCheatManager.java
index 141388a..b6b2eb7 100644
--- a/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/cheat_protect/CreativCheatManager.java
+++ b/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/cheat_protect/CreativCheatManager.java
@@ -7,11 +7,10 @@ import org.bukkit.event.Listener;
 import org.bukkit.event.player.PlayerMoveEvent;
 
 public class CreativCheatManager implements Listener {
-	private PandacraftUtils plugin;
+	private PandacraftUtils plugin = PandacraftUtils.getInstance();
 	
-	public CreativCheatManager(PandacraftUtils pl)
+	public CreativCheatManager()
 	{
-		plugin = pl;
 		plugin.getServer().getPluginManager().registerEvents(this, plugin);
 	}
 	
diff --git a/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/cheat_protect/NoPvpProtectManager.java b/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/cheat_protect/NoPvpProtectManager.java
index aeeb1df..8c287bb 100644
--- a/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/cheat_protect/NoPvpProtectManager.java
+++ b/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/cheat_protect/NoPvpProtectManager.java
@@ -21,7 +21,7 @@ import org.bukkit.event.player.PlayerBucketEmptyEvent;
 
 public class NoPvpProtectManager implements Listener {
 	
-	private PandacraftUtils plugin;
+	private PandacraftUtils plugin = PandacraftUtils.getInstance();
 	
 	private double lava_distance = 5;
 	private double fire_distance = 5;
@@ -29,9 +29,8 @@ public class NoPvpProtectManager implements Listener {
 	private String last_logger_message = "";
 	
 
-	public NoPvpProtectManager(PandacraftUtils pl)
+	public NoPvpProtectManager()
 	{
-		plugin = pl;
 		plugin.getServer().getPluginManager().registerEvents(this, plugin);
 	}