请问大家在submission and esign时, 有没有碰到过不能提交?我总是受到以下的 error message There was a technical problem while handling the request. If you need assistance please contact the USCIS National Customer Service Center at 1- 800-375-5283 or 1-800-767-1833 (TDD for the hearing impaired). 非常感谢!