diff --git a/SpigotCore_Main/src/de/steamwar/comms/PacketIdManager.java b/SpigotCore_Main/src/de/steamwar/comms/PacketIdManager.java
index f7b71e4..d4e85a2 100644
--- a/SpigotCore_Main/src/de/steamwar/comms/PacketIdManager.java
+++ b/SpigotCore_Main/src/de/steamwar/comms/PacketIdManager.java
@@ -27,6 +27,7 @@ public class PacketIdManager {
     public static final byte TABLIST_NAME = 0x02;
     public static final byte PREPARE_SCHEM = 0x03;
     public static final byte BAUMEMBER_UPDATE = 0x04;
+    public static final byte EXECUTE_COMMAND = 0x05;
     //0x1(X) Bungee Inventory
     public static final byte INVENTORY_PACKET = 0x10;
     public static final byte INVENTORY_CALLBACK_PACKET = 0x11;
diff --git a/SpigotCore_Main/src/de/steamwar/comms/packets/ExecuteCommandPacket.java b/SpigotCore_Main/src/de/steamwar/comms/packets/ExecuteCommandPacket.java
new file mode 100644
index 0000000..bede2b2
--- /dev/null
+++ b/SpigotCore_Main/src/de/steamwar/comms/packets/ExecuteCommandPacket.java
@@ -0,0 +1,47 @@
+/*
+    This file is a part of the SteamWar software.
+
+    Copyright (C) 2021  SteamWar.de-Serverteam
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package de.steamwar.comms.packets;
+
+import com.google.common.io.ByteArrayDataOutput;
+import de.steamwar.comms.PacketIdManager;
+import de.steamwar.sql.SteamwarUser;
+import org.bukkit.entity.Player;
+
+public class ExecuteCommandPacket extends SpigotPacket {
+
+    private final SteamwarUser user;
+    private final String command;
+
+    public ExecuteCommandPacket(Player player, String command) {
+        this.user = SteamwarUser.get(player.getUniqueId());
+        this.command = command;
+    }
+
+    @Override
+    public int getName() {
+        return PacketIdManager.EXECUTE_COMMAND;
+    }
+
+    @Override
+    public void writeVars(ByteArrayDataOutput out) {
+        out.writeInt(user.getId());
+        out.writeUTF(command);
+    }
+}
diff --git a/SpigotCore_Main/src/de/steamwar/inventory/SchematicSelector.java b/SpigotCore_Main/src/de/steamwar/inventory/SchematicSelector.java
index 90e96d4..6a98371 100644
--- a/SpigotCore_Main/src/de/steamwar/inventory/SchematicSelector.java
+++ b/SpigotCore_Main/src/de/steamwar/inventory/SchematicSelector.java
@@ -228,10 +228,14 @@ public class SchematicSelector {
         SWAnvilInv inv = new SWAnvilInv(player, Core.MESSAGE.parse("SCHEM_SELECTOR_CREATE_DIR_TITLE", player));
         inv.setItem(Material.CHEST);
         inv.setCallback(s -> {
-            if(injectable.onFolderCreate(this, s)) {
-                SchematicNode.createSchematicDirectory(user.getId(), s, parent==null?0:parent.getId());
-                openList(parent);
+            if(!SchematicNode.invalidSchemName(new String[] {s})) {
+                if(injectable.onFolderCreate(this, s)) {
+                    SchematicNode.createSchematicDirectory(user.getId(), s, parent==null?0:parent.getId());
+                    openList(parent);
+                }
+                return;
             }
+            player.closeInventory();
         });
         inv.open();
     }
diff --git a/SpigotCore_Main/src/de/steamwar/sql/Punishment.java b/SpigotCore_Main/src/de/steamwar/sql/Punishment.java
index 0e2bc5b..85ec258 100644
--- a/SpigotCore_Main/src/de/steamwar/sql/Punishment.java
+++ b/SpigotCore_Main/src/de/steamwar/sql/Punishment.java
@@ -27,6 +27,7 @@ import java.sql.SQLException;
 import java.sql.Timestamp;
 import java.time.format.DateTimeFormatter;
 import java.util.*;
+import java.util.function.Consumer;
 
 public class Punishment {
 
@@ -50,6 +51,16 @@ public class Punishment {
         }, user);
     }
 
+    public static boolean isPunished(SteamwarUser user, Punishment.PunishmentType type, Consumer<Punishment> callback) {
+        Punishment punishment = Punishment.getPunishmentOfPlayer(user.getId(), type);
+        if(punishment == null || punishment.isCurrent()) {
+            return false;
+        } else {
+            callback.accept(punishment);
+            return true;
+        }
+    }
+
     private final Timestamp startTime;
     private Timestamp endTime;
     private final PunishmentType type;
diff --git a/SpigotCore_Main/src/de/steamwar/sql/SchematicNode.java b/SpigotCore_Main/src/de/steamwar/sql/SchematicNode.java
index d888e5e..4d31c7c 100644
--- a/SpigotCore_Main/src/de/steamwar/sql/SchematicNode.java
+++ b/SpigotCore_Main/src/de/steamwar/sql/SchematicNode.java
@@ -22,7 +22,6 @@ package de.steamwar.sql;
 import com.sk89q.worldedit.extent.clipboard.Clipboard;
 import de.steamwar.core.Core;
 import de.steamwar.core.WorldEditWrapper;
-import de.steamwar.inventory.SWItem;
 import org.bukkit.entity.Player;
 
 import java.io.ByteArrayInputStream;
@@ -508,9 +507,6 @@ public class SchematicNode {
     }
 
     public void delete() {
-        if (isDir()) {
-            getSchematicNodeInNode(getId()).forEach(SchematicNode::delete);
-        }
         deleteNode.update(id);
     }
 
@@ -604,4 +600,28 @@ public class SchematicNode {
         list.remove("//copy");
         return list;
     }
+
+    private static final List<String> FORBIDDEN_NAMES = Collections.unmodifiableList(Arrays.asList("public"));
+    public static boolean invalidSchemName(String[] layers) {
+        for (String layer : layers) {
+            if (layer.isEmpty()) {
+                return true;
+            }
+            if (layer.contains("/") ||
+                    layer.contains("\\") ||
+                    layer.contains("<") ||
+                    layer.contains(">") ||
+                    layer.contains("^") ||
+                    layer.contains("°") ||
+                    layer.contains("'") ||
+                    layer.contains("\"") ||
+                    layer.contains(" ")) {
+                return true;
+            }
+            if(FORBIDDEN_NAMES.contains(layer.toLowerCase())) {
+                return true;
+            }
+        }
+        return false;
+    }
 }