async submitLogin() {
    const mailControl = this.loginForm.controls['mail'];
    const passWordControl = this.loginForm.controls['passWord'];
    const s = new Login(mailControl.value, passWordControl.value); /*Only a void function can be called with the 'new' keyword*/
    console.log(s);
    const msgErrors = await s.init(mailControl.value, passWordControl.value);

    if (msgErrors.errorUserMsg) {
      this.msgErrorLogin = msgErrors.errorUserMsg;
    }
}