diff --git a/missilewars-plugin/src/main/java/de/butzlabben/missilewars/game/Game.java b/missilewars-plugin/src/main/java/de/butzlabben/missilewars/game/Game.java
index 620fbb6a..272ef7ef 100644
--- a/missilewars-plugin/src/main/java/de/butzlabben/missilewars/game/Game.java
+++ b/missilewars-plugin/src/main/java/de/butzlabben/missilewars/game/Game.java
@@ -497,7 +497,7 @@ public void broadcast(String message) {
     public void startForPlayer(Player player) {
         MWPlayer mwPlayer = getPlayer(player);
         if (mwPlayer == null) {
-            System.err.println("[MissileWars] Error starting game at player " + player.getName());
+            Logger.ERROR.log("Error starting game at player " + player.getName());
             return;
         }
 
diff --git a/missilewars-plugin/src/main/java/de/butzlabben/missilewars/inventory/OrcInventory.java b/missilewars-plugin/src/main/java/de/butzlabben/missilewars/inventory/OrcInventory.java
index 580c619b..003bc4e1 100644
--- a/missilewars-plugin/src/main/java/de/butzlabben/missilewars/inventory/OrcInventory.java
+++ b/missilewars-plugin/src/main/java/de/butzlabben/missilewars/inventory/OrcInventory.java
@@ -18,15 +18,17 @@
 
 package de.butzlabben.missilewars.inventory;
 
-import java.util.HashMap;
-import java.util.Map.Entry;
-import java.util.Objects;
+import de.butzlabben.missilewars.Logger;
 import lombok.Getter;
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
 import org.bukkit.event.inventory.InventoryType;
 import org.bukkit.inventory.Inventory;
 
+import java.util.HashMap;
+import java.util.Map.Entry;
+import java.util.Objects;
+
 @Getter
 public abstract class OrcInventory {
 
@@ -112,7 +114,7 @@ public Inventory getInventory(Player p, String title) {
             if (entry.getKey() >= 0 && entry.getKey() < size) {
                 inv.setItem(entry.getKey(), entry.getValue().getItemStack(p));
             } else {
-                System.err.println("There is a problem with a configured Item!");
+                Logger.ERROR.log("There is a problem with a configured Item!");
             }
         }
 
@@ -136,7 +138,7 @@ public Inventory getInventory() {
             if (entry.getKey() >= 0 && entry.getKey() < size) {
                 inv.setItem(entry.getKey(), entry.getValue().getItemStack());
             } else {
-                System.err.println("There is a problem with a configured Item!");
+                Logger.ERROR.log("There is a problem with a configured Item!");
             }
         }
         return inv;
diff --git a/missilewars-plugin/src/main/java/de/butzlabben/missilewars/inventory/pages/InventoryPage.java b/missilewars-plugin/src/main/java/de/butzlabben/missilewars/inventory/pages/InventoryPage.java
index 214f88a2..7a46655f 100644
--- a/missilewars-plugin/src/main/java/de/butzlabben/missilewars/inventory/pages/InventoryPage.java
+++ b/missilewars-plugin/src/main/java/de/butzlabben/missilewars/inventory/pages/InventoryPage.java
@@ -18,6 +18,7 @@
 
 package de.butzlabben.missilewars.inventory.pages;
 
+import de.butzlabben.missilewars.Logger;
 import de.butzlabben.missilewars.inventory.OrcInventory;
 import de.butzlabben.missilewars.inventory.OrcItem;
 import de.butzlabben.missilewars.util.version.VersionUtil;
@@ -62,7 +63,7 @@ public Inventory getInventory(Player p) {
 
     public void addItem(OrcItem item) {
         if (i > 36) {
-            System.err.println("More items than allowed in page view");
+            Logger.ERROR.log("More items than allowed in page view");
             return;
         }
         addItem(i, item);
diff --git a/missilewars-plugin/src/main/java/de/butzlabben/missilewars/util/ConnectionHolder.java b/missilewars-plugin/src/main/java/de/butzlabben/missilewars/util/ConnectionHolder.java
index 9f8e0272..39677e3e 100644
--- a/missilewars-plugin/src/main/java/de/butzlabben/missilewars/util/ConnectionHolder.java
+++ b/missilewars-plugin/src/main/java/de/butzlabben/missilewars/util/ConnectionHolder.java
@@ -63,7 +63,7 @@ public static void close() {
         synchronized (lock) {
             try {
                 if (connection == null || connection.isClosed()) {
-                    System.err.println("[MySQL] Connection does not exist or was already closed");
+                    Logger.ERROR.log("[MySQL] Connection does not exist or was already closed");
                     return;
                 }
                 connection.close();
diff --git a/missilewars-plugin/src/main/java/de/butzlabben/missilewars/util/SetupUtil.java b/missilewars-plugin/src/main/java/de/butzlabben/missilewars/util/SetupUtil.java
index 891e75de..c6b931b1 100644
--- a/missilewars-plugin/src/main/java/de/butzlabben/missilewars/util/SetupUtil.java
+++ b/missilewars-plugin/src/main/java/de/butzlabben/missilewars/util/SetupUtil.java
@@ -147,7 +147,7 @@ private static void copyFile(String resource, String out) {
                 InputStream in = MissileWars.getInstance().getResource(resource);
                 Files.copy(in, file.toPath());
             } catch (IOException e) {
-                System.err.println("Wasn't able to create Config");
+                Logger.ERROR.log("Wasn't able to create Config");
                 e.printStackTrace();
             }
         }