Hello Chihyung,
We are able to locate the account using the order ID that you have provided.
The account is registered with a different email address.
As per the record, you have purchased the license for AVG Internet Security (1 computer) and it expires on 21st May 2017.
We have sent the email instructions to install the program along with the license number.
Also we have mentioned the email address that is registered on the email that we have sent now.
Please communicate via that email to get further assistance.
Please check for the email on spam and junk folders if it is not present in the inbox.