diff --git a/SchematicSystem_15/src/de/steamwar/schematicsystem/CheckSchemType15.java b/SchematicSystem_15/src/de/steamwar/schematicsystem/CheckSchemType15.java
index 0d4c79c..e0640c9 100644
--- a/SchematicSystem_15/src/de/steamwar/schematicsystem/CheckSchemType15.java
+++ b/SchematicSystem_15/src/de/steamwar/schematicsystem/CheckSchemType15.java
@@ -84,8 +84,6 @@ public class CheckSchemType15 implements CheckSchemType.ICheckSchemType {
             Material.GOLDEN_HORSE_ARMOR,
             Material.HONEY_BOTTLE);
 
-    private CheckSchemType15(){}
-
     @Override
     public void autoCheck(AutoCheckResult result, Clipboard clipboard) {
         BlockVector3 dimensions = clipboard.getDimensions();
diff --git a/SchematicSystem_8/src/de/steamwar/schematicsystem/CheckSchemType8.java b/SchematicSystem_8/src/de/steamwar/schematicsystem/CheckSchemType8.java
index 6335f23..c5fa415 100644
--- a/SchematicSystem_8/src/de/steamwar/schematicsystem/CheckSchemType8.java
+++ b/SchematicSystem_8/src/de/steamwar/schematicsystem/CheckSchemType8.java
@@ -68,8 +68,6 @@ public class CheckSchemType8 implements CheckSchemType.ICheckSchemType {
         FLOWERS = flowers;
     }
 
-    private CheckSchemType8(){}
-
     @Override
     public void autoCheck(AutoCheckResult result, Clipboard clipboard) {
         Vector dimensions = clipboard.getDimensions();
diff --git a/SchematicSystem_Core/src/de/steamwar/schematicsystem/CheckSchemType.java b/SchematicSystem_Core/src/de/steamwar/schematicsystem/CheckSchemType.java
index 2991f08..f3c3a01 100644
--- a/SchematicSystem_Core/src/de/steamwar/schematicsystem/CheckSchemType.java
+++ b/SchematicSystem_Core/src/de/steamwar/schematicsystem/CheckSchemType.java
@@ -55,8 +55,6 @@ public class CheckSchemType {
         maxDispenserItems = section.getInt("Schematic.MaxDispenserItems", 128);
         maxBlocks = section.getInt("Schematic.MaxBlocks", 0);
 
-        //TODO: Materials in Config required in style of 1.8-1.12 and 1.13-1.15
-
         limits = new HashMap<>();
         for(Map<?, ?> entry : section.getMapList("Schematic.Limited")) {
             int amount = (Integer) entry.get("Amount");
@@ -78,7 +76,7 @@ public class CheckSchemType {
         if(folder.exists()) {
             for(File configFile : folder.listFiles((file, name) -> name.endsWith(".yml") && !name.endsWith(".kits.yml"))) {
                 YamlConfiguration config = YamlConfiguration.loadConfiguration(configFile);
-                if (!config.isConfigurationSection("CheckQuestions"))
+                if (!config.isList("CheckQuestions"))
                     continue;
 
                 new CheckSchemType(config);
diff --git a/SchematicSystem_Core/src/de/steamwar/schematicsystem/commands/GUI.java b/SchematicSystem_Core/src/de/steamwar/schematicsystem/commands/GUI.java
index 15d1a4a..c9bf36e 100644
--- a/SchematicSystem_Core/src/de/steamwar/schematicsystem/commands/GUI.java
+++ b/SchematicSystem_Core/src/de/steamwar/schematicsystem/commands/GUI.java
@@ -60,12 +60,6 @@ class GUI {
         inv.setItem(0, SWItem.getDye(1), (byte) 1, "§eLöschen", click -> {
             schem.remove();
 
-            List<CheckedSchematic> checkedSchematics = CheckedSchematic.getLastDeclined(p.getUniqueId());
-            for(CheckedSchematic checkedSchematic : checkedSchematics) {
-                if(checkedSchematic.getSchemOwner() == schem.getSchemOwner() &&
-                        checkedSchematic.getSchemName().equals(schem.getSchemName()))
-                    checkedSchematic.remove();
-            }
             p.sendMessage(SchematicSystem.PREFIX + "Schematic §e" + schem.getSchemName() + " §7gelöscht");
             p.closeInventory();
         });