diff --git a/bukkit/pom.xml b/bukkit/pom.xml
index a1221089..994c88ff 100644
--- a/bukkit/pom.xml
+++ b/bukkit/pom.xml
@@ -70,7 +70,7 @@
         <dependency>
             <groupId>fr.xephi</groupId>
             <artifactId>authme</artifactId>
-            <version>5.1-SNAPSHOT</version>
+            <version>5.2-SNAPSHOT</version>
             <optional>true</optional>
         </dependency>
 
diff --git a/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/FastLoginBukkit.java b/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/FastLoginBukkit.java
index e55c962a..3a8a462c 100644
--- a/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/FastLoginBukkit.java
+++ b/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/FastLoginBukkit.java
@@ -45,7 +45,7 @@ public class FastLoginBukkit extends JavaPlugin {
     //SafeCacheBuilder is used in order to be version independent
     private final ConcurrentMap<String, PlayerSession> session = SafeCacheBuilder.<String, PlayerSession>newBuilder()
             //2 minutes should be enough as a timeout for bad internet connection (Server, Client and Mojang)
-            .expireAfterWrite(1, TimeUnit.MINUTES)
+            .expireAfterWrite(30, TimeUnit.SECONDS)
             //mapped by ip:port -> PlayerSession
             .build(new CacheLoader<String, PlayerSession>() {
 
diff --git a/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/hooks/CrazyLoginHook.java b/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/hooks/CrazyLoginHook.java
index aa8e5a14..6725012a 100644
--- a/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/hooks/CrazyLoginHook.java
+++ b/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/hooks/CrazyLoginHook.java
@@ -10,6 +10,7 @@ import de.st_ddt.crazylogin.metadata.Authenticated;
 
 import java.util.logging.Level;
 
+import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
 
 /**
@@ -59,18 +60,34 @@ public class CrazyLoginHook implements AuthPlugin {
     }
 
     @Override
-    public void forceRegister(Player player, String password) {
-        CrazyLogin crazyLoginPlugin = CrazyLogin.getPlugin();
-        CrazyLoginDataDatabase crazyDatabase = crazyLoginPlugin.getCrazyDatabase();
+    public void forceRegister(final Player player, String password) {
+        final CrazyLogin crazyLoginPlugin = CrazyLogin.getPlugin();
+        final CrazyLoginDataDatabase crazyDatabase = crazyLoginPlugin.getCrazyDatabase();
 
-        LoginPlayerData playerData = crazyLoginPlugin.getPlayerData(player.getName());
-        if (playerData == null) {
-            //create a fake account - this will be saved to the database with the password=FAILEDLOADING
-            //user cannot login with that password unless the admin uses plain text
-            //this automatically marks the player as logged in
-            playerData = new LoginPlayerData(player);
-            crazyDatabase.save(playerData);
-        }
+        //this executes a sql query and accesses only thread safe collections so we can run it async
+        Bukkit.getScheduler().runTaskAsynchronously(crazyLoginPlugin, new Runnable() {
+            @Override
+            public void run() {
+                LoginPlayerData playerData = crazyLoginPlugin.getPlayerData(player.getName());
+                if (playerData == null) {
+                    //create a fake account - this will be saved to the database with the password=FAILEDLOADING
+                    //user cannot login with that password unless the admin uses plain text
+                    //this automatically marks the player as logged in
+                    playerData = new LoginPlayerData(player);
+                    crazyDatabase.save(playerData);
+
+                    //this method is not thread-safe and requires the existence of the account
+                    //so reschedule it to the main thread
+                    Bukkit.getScheduler().runTask(crazyLoginPlugin, new Runnable() {
+                        @Override
+                        public void run() {
+                            //login the player after registration
+                            forceLogin(player);
+                        }
+                    });
+                }
+            }
+        });
     }
 
     private PlayerListener getListener() {
diff --git a/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/hooks/LoginSecurityHook.java b/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/hooks/LoginSecurityHook.java
index 9e939316..91904390 100644
--- a/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/hooks/LoginSecurityHook.java
+++ b/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/hooks/LoginSecurityHook.java
@@ -8,6 +8,7 @@ import java.net.InetAddress;
 
 import java.util.UUID;
 
+import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
 
 /**
@@ -48,13 +49,23 @@ public class LoginSecurityHook implements AuthPlugin {
     }
 
     @Override
-    public void forceRegister(Player player, String password) {
-        LoginSecurity securityPlugin = LoginSecurity.instance;
-        DataManager dataManager = securityPlugin.data;
+    public void forceRegister(Player player, final String password) {
+        final LoginSecurity securityPlugin = LoginSecurity.instance;
+        final DataManager dataManager = securityPlugin.data;
 
         UUID playerUUID = player.getUniqueId();
-        String uuidString = playerUUID.toString().replace("-", "");
-        InetAddress ipAddress = player.getAddress().getAddress();
-        dataManager.register(uuidString, password, securityPlugin.hasher.getTypeId(), ipAddress.toString());
+        final String uuidString = playerUUID.toString().replace("-", "");
+        final InetAddress ipAddress = player.getAddress().getAddress();
+
+        //this executes a sql query without interacting with other parts so we can run it async.
+        Bukkit.getScheduler().runTaskAsynchronously(securityPlugin, new Runnable() {
+            @Override
+            public void run() {
+                dataManager.register(uuidString, password, securityPlugin.hasher.getTypeId(), ipAddress.toString());
+            }
+        });
+
+        //notify the plugin that this player can be logged in
+        forceLogin(player);
     }
 }
diff --git a/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/hooks/xAuthHook.java b/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/hooks/xAuthHook.java
index bf16afbd..cf32a176 100644
--- a/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/hooks/xAuthHook.java
+++ b/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/hooks/xAuthHook.java
@@ -20,6 +20,7 @@ public class xAuthHook implements AuthPlugin {
             xAuthPlugin.getPlayerManager().doLogin(xAuthPlayer);
 
             //we checked that the player is premium (paid account)
+            //unprotect the inventory, op status...
             xAuthPlayer.setPremium(true);
         }
     }
@@ -38,13 +39,12 @@ public class xAuthHook implements AuthPlugin {
 
         xAuthPlayer xAuthPlayer = xAuthPlugin.getPlayerManager().getPlayer(player);
         if (xAuthPlayer != null) {
+            //this should run async because the plugin executes a sql query, but the method
+            //accesses non thread-safe collections :(
             xAuthPlugin.getAuthClass(xAuthPlayer).adminRegister(player.getName(), password, null);
 
-            //we checked that the player is premium (paid account)
-            xAuthPlayer.setPremium(true);
-
-            //unprotect the inventory, op status...
-            xAuthPlugin.getPlayerManager().doLogin(xAuthPlayer);
+            //login in the player after registration
+            forceLogin(player);
         }
     }
 }
diff --git a/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/ProtcolSupportListener.java b/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/ProtcolSupportListener.java
index 334d3986..9c46ef80 100644
--- a/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/ProtcolSupportListener.java
+++ b/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/ProtcolSupportListener.java
@@ -35,6 +35,9 @@ public class ProtcolSupportListener implements Listener {
         }
 
         String playerName = loginStartEvent.getName();
+
+        //remove old data every time on a new login in order to keep the session only for one person
+        plugin.getSessions().remove(playerName);
         if (plugin.getEnabledPremium().contains(playerName)) {
             //the player have to be registered in order to invoke the command
             startPremiumSession(playerName, loginStartEvent, true);