Update and Licence

I dont know why but since a few months I'm receiving strange messages for a Personnel and educational licence that I got since a long time now

first one is a message about update

http://pages.infinit.net/gear/smartftpupdate.jpg

and then another one that asks to register

http://pages.infinit.net/gear/smartftpreminder.jpg

AS I said, I never had those before. What happened and what can I do to avoid getting them. Don't tell me to buy cause as it is mentioned, its not suppose to happen when you have the personnel and educational licence.

Thanx