Online status 체크 안되는 경우

bread 47.***.232.141

USCIS Response to Coronavirus 2019 (COVID‑19)
ALERT: USCIS is currently experiencing technical delays with the online case status system that makes case status updates unavailable. If you receive a message when checking your case status that your case receipt number is not recognized, you are likely being affected by this technical problem. USCIS is working to correct this situation and expects resolution in coming days.
We encourage you to register for case status alert notifications through the USCIS Online Account so that you will be notified when the system is restored and case status updates can be viewed.