cant register with other accounts

i followed a playfab auth tutorial and it worked pretty well but i cant seem to register with any other accounts, only 1 account of mine is able to login while i get this error when trying to login with any other (existing) gmail accounts /Client/LoginWithEmailAddress: User not found

some parts of my script:

    public void OnClickLogin()
    {
        var request = new LoginWithEmailAddressRequest { Email = userEmail, Password = userPass };
        PlayFabClientAPI.LoginWithEmailAddress(request, OnLoginSuccess, OnError);
    }


    void OnLoginSuccess(LoginResult result)
    {
        PlayerPrefs.SetString("EMAIL", userEmail);
        PlayerPrefs.SetString("USERNAME", username2);
        PlayerPrefs.SetString("PASSWORD", userPass);
        loginPanel.SetActive(false);
        MenuManager.Instance.OpenMenu("title");
    }

    void OnLoginFailure(PlayFabError error)
    {
        var registerRequest = new RegisterPlayFabUserRequest { Email = userEmail, Password = userPass, Username = username2 };
        PlayFabClientAPI.RegisterPlayFabUser(registerRequest, OnRegisterSuccess, OnRegisterFailure);
    }


    void OnRegisterSuccess(RegisterPlayFabUserResult result)
    {
        Debug.Log("successfully registered");
        PlayerPrefs.SetString("EMAIL", userEmail);
        PlayerPrefs.SetString("PASSWORD", userPass);
        PlayerPrefs.SetString("USERNAME", username2);
        loginPanel.SetActive(false);
        MenuManager.Instance.OpenMenu("title");
    }


    void OnRegisterFailure(PlayFabError error)
    {
        Debug.Log("failed to register");
        Debug.LogError(error.GenerateErrorReport());
    }