Fix SchematicType

SpigotCore_Main/src/de/steamwar/sql/SchematicType.java

@@ -56,8 +56,7 @@ public class SchematicType {
 					continue;
 
 				SchematicType checktype = null;
-				String materialString = config.getString("Schematic.Material");
-				Material material = materialString != null ? SWItem.getMaterial(materialString) : SWItem.getMaterial("STONE_BUTTON");
+				Material material = SWItem.getMaterial(config.getString("Schematic.Material", "STONE_BUTTON"));
 
 				if(!config.getStringList("CheckQuestions").isEmpty()) {
 					checktype = new SchematicType("C" + type, "C" + shortcut, Type.CHECK_TYPE, null, material);