Re: 3.0 to 4.0 Update.. Licence Expired?
A license itself has no expiration date, it's a lifetime license. Furthermore, as a bonus, it includes all minor upgrades (upgrades within the main version number, like 3.x). When a major upgrade is released, you can continue using the older version or upgrade with our special price offer for registered users.
The latest 3.x version is available here
. You will need to uninstall the 4.0 version and recover your database from a backup.