It’s worth mentioning that my Impact account is still active and generating income from links. So I don’t believe it’s about to be deleted. And I don’t see any notification in Impact.
The email address shown in the screenshot, “mail@messages.impact.com,” is typically the one from which Impact emails are sent. It appears that this email was sent by mistake. It would be best to contact the affiliate support team directly at affiliates@envato.com.