Fix ELO SQL

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

@@ -28,7 +28,7 @@ public class Elo {
     public static int getElo(int userId, String gameMode){
         return get.select(rs -> {
             if(rs.next())
-                return rs.getInt("id");
+                return rs.getInt("Elo");
             return 1000;
         }, userId, gameMode);
     }