How can I resolve this error (license deactivation)

Dear Cedrus

I got this message (see attached file) from one of my computer which has one activated license.

I would appreciate any comments.

Sincerely
Tae-Ho

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I will contact you via private message. If you have any licensing questions in the future, please email us from the link below.

http://www.cedrus.com/misc/send_email.htm