catch(PSQLException ex)
        {
            ServerErrorMessage sem = ex.getServerErrorMessage();
            if(sem.getDetail().contains("email")){
                System.out.println("email already used");
                return new ResponseCommand(NetCode.Error526Email);
            }
            else{
                System.out.println("ip already used");
                return new ResponseCommand(NetCode.RegSuccessful);
            }
        }