Hotfix Schemtype fromDB NPE

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

@@ -81,9 +81,7 @@ public class SchematicType {
 	}
 
 	public static SchematicType fromDB(String input){
-		if(input == null)
-			return null;
-		return fromDB.get(input.toLowerCase());
+		return fromDB.getOrDefault(input.toLowerCase(), null);
 	}
 
 	public static List<SchematicType> values(){