可以登录：esc,ica .gov.sg.
但是，显示：

  • System is unable to accept your application.
    For more information, please contact helpdesk at [email protected] or call 6391 6324, and quote Reference No. E017.
    Thank you.

请问，系统不接受，系统故障？还是其他问题？No.E017 怎么回事？
谢谢！