diff --git a/src/main/java/de/fanta/challenges/challenges/BingoChallengeEvent.java b/src/main/java/de/fanta/challenges/challenges/BingoChallengeEvent.java
index 6bb4716..bcba487 100644
--- a/src/main/java/de/fanta/challenges/challenges/BingoChallengeEvent.java
+++ b/src/main/java/de/fanta/challenges/challenges/BingoChallengeEvent.java
@@ -107,8 +107,8 @@
         }
     }
 
-    public void setMaterials(List<Material> materials) {
-        BingoChallengeEvent.materials = materials;
+    public void setMaterials(List<Material> mat) {
+        materials = mat;
     }
 
     public static List<Material> getMaterials() {
@@ -123,8 +123,8 @@
         return running;
     }
 
-    public void setRunning(boolean running) {
-        BingoChallengeEvent.running = running;
+    public void setRunning(boolean run) {
+        running = run;
     }
 
     public void addDiscoveredItem(Player player, ItemStack itemStack) {
diff --git a/src/main/java/de/fanta/challenges/challenges/MLGChallenge.java b/src/main/java/de/fanta/challenges/challenges/MLGChallenge.java
index f2d765a..92a43c9 100644
--- a/src/main/java/de/fanta/challenges/challenges/MLGChallenge.java
+++ b/src/main/java/de/fanta/challenges/challenges/MLGChallenge.java
@@ -19,18 +19,13 @@
 
 public class MLGChallenge {
 
-    private static Challenges plugin;
-    private static Random random;
+    private static final Challenges plugin = Challenges.getPlugin();
+
+    private static final Random random = new Random();;
     private static boolean mlgActive;
 
     public static int timeSinceMLG; // seconds
-    public static int maxMLGTime; // seconds
-
-    public MLGChallenge(Challenges plugin) {
-        MLGChallenge.plugin = plugin;
-        random = new Random();
-        maxMLGTime = plugin.getConfig().getInt("mlg.maxtime");
-    }
+    public static int maxMLGTime = plugin.getConfig().getInt("mlg.maxtime");; // seconds
 
     public static void checkMLGWorld() {
         World mlgWorld = Bukkit.getWorld("mlg_challenge");
diff --git a/src/main/java/de/fanta/challenges/challenges/RandomEffectChallenge.java b/src/main/java/de/fanta/challenges/challenges/RandomEffectChallenge.java
index 16c992d..fd598fd 100644
--- a/src/main/java/de/fanta/challenges/challenges/RandomEffectChallenge.java
+++ b/src/main/java/de/fanta/challenges/challenges/RandomEffectChallenge.java
@@ -21,8 +21,8 @@
 
     @EventHandler
     public void onPlayerMove(PlayerMoveEvent e) {
-        if (plugin.getConfig().getBoolean("randomeffect") && plugin.getTimer().isRunning()) {
-            Player p = e.getPlayer();
+        Player p = e.getPlayer();
+        if (plugin.getConfig().getBoolean("randomeffect") && plugin.getTimer().isRunning() && !plugin.getVanish().isVanish(p)) {
             long chunkkey = p.getLocation().getChunk().getChunkKey();
             Random random = new Random();
             PotionEffectType[] values = Arrays.stream(PotionEffectType.values()).filter(effect -> (!effect.equals(PotionEffectType.HARM))).toArray(PotionEffectType[]::new);
@@ -32,7 +32,7 @@
             }
             if (chunkPotionEffectMap.get(chunkkey) != playerPotionEffectMap.get(p)) {
                 if (playerPotionEffectMap.get(p) != null) {
-                        p.removePotionEffect(playerPotionEffectMap.get(p).getType());
+                    p.removePotionEffect(playerPotionEffectMap.get(p).getType());
                     }
                     p.addPotionEffect(chunkPotionEffectMap.get(chunkkey));
                     playerPotionEffectMap.put(p, chunkPotionEffectMap.get(chunkkey));
diff --git a/src/main/java/de/fanta/challenges/challenges/XPChallenge.java b/src/main/java/de/fanta/challenges/challenges/XPChallenge.java
index c14f657..872dc75 100644
--- a/src/main/java/de/fanta/challenges/challenges/XPChallenge.java
+++ b/src/main/java/de/fanta/challenges/challenges/XPChallenge.java
@@ -19,7 +19,7 @@
             if (plugin.getConfig().getBoolean("xpdeath")) {
                 p.setHealth(0);
             }
-            ChatUtil.sendBrodcastMessage(e.getPlayer() + " hat XP eingesammelt!");
+            ChatUtil.sendBrodcastMessage(e.getPlayer().getName() + " hat XP eingesammelt!");
         }
     }
 }
diff --git a/src/main/java/de/fanta/challenges/listeners/DamageListener.java b/src/main/java/de/fanta/challenges/listeners/DamageListener.java
index 3a5e70c..0a3d424 100644
--- a/src/main/java/de/fanta/challenges/listeners/DamageListener.java
+++ b/src/main/java/de/fanta/challenges/listeners/DamageListener.java
@@ -18,7 +18,7 @@
     @EventHandler
     public void onDamage(EntityDamageEvent e) {
         if (e.getEntity() instanceof Player p) {
-            if (plugin.getTimer().isRunning() && plugin.getVanish().isVanish(p)) {
+            if (plugin.getTimer().isRunning() && !plugin.getVanish().isVanish(p)) {
                 String dmg = new DecimalFormat("#.##").format(e.getFinalDamage());
                 if (plugin.getConfig().getBoolean("dmginchat")) {
                     if ((e.getFinalDamage() > 0) && (e.getFinalDamage() < 10000)) {
@@ -33,17 +33,22 @@
                         }
                     }
                 }
+            } else {
+                e.setCancelled(true);
             }
         }
     }
 
     @EventHandler
     public void onEntityDamage(EntityDamageByEntityEvent e) {
-        if ((e.getEntity() instanceof Player p) && (e.getFinalDamage() > 0) && (plugin.getTimer().isRunning()) && !plugin.getVanish().isVanish(p)) {
+        if (!plugin.getTimer().isRunning()) {
+            e.setCancelled(true);
+            return;
+        }
+        if ((e.getEntity() instanceof Player p) && (e.getFinalDamage() > 0) && !plugin.getVanish().isVanish(p)) {
             String dmg = new DecimalFormat("#.##").format(e.getFinalDamage());
             if ((e.getCause() == DamageCause.ENTITY_ATTACK || e.getCause() == DamageCause.ENTITY_EXPLOSION) && plugin.getConfig().getBoolean("dmginchat")) {
                     ChatUtil.sendBrodcastMessage(ChatUtil.BLUE + p.getName() + ChatUtil.GREEN + " hat " + ChatUtil.ORANGE + dmg + ChatUtil.GREEN + " HP Schaden genommen durch " + ChatUtil.ORANGE + e.getDamager().getName());
-
             }
         }
     }
diff --git a/src/main/java/de/fanta/challenges/listeners/EventRegistration.java b/src/main/java/de/fanta/challenges/listeners/EventRegistration.java
index 578677e..9b39ea3 100644
--- a/src/main/java/de/fanta/challenges/listeners/EventRegistration.java
+++ b/src/main/java/de/fanta/challenges/listeners/EventRegistration.java
@@ -1,6 +1,7 @@
 package de.fanta.challenges.listeners;
 
 import de.fanta.challenges.Challenges;
+import de.fanta.challenges.challenges.BingoChallengeEvent;
 import de.fanta.challenges.challenges.ChallengeGoals;
 import de.fanta.challenges.challenges.ClearInventoryByDamageChallenge;
 import de.fanta.challenges.challenges.CraftingTableChallenge;
@@ -64,5 +65,6 @@
         pM.registerEvents(new ClearInventoryByDamageChallenge(), plugin);
         pM.registerEvents(new TiedTogetherChallenge(), plugin);
         pM.registerEvents(new NoSneakChallenge(), plugin);
+        pM.registerEvents(new BingoChallengeEvent(), plugin);
     }
 }