Installed ADIsimPI right now and at first start it says that it only have 14 days remaining

Installed ADIsimPI right now and at first start it says that it only have 14 days remaining. It also says that I should look for uppdates but I have installed the latest version.

Will I be able to use it for more than 14 days or am I supposed to buy the full version after this? This is something I do not want to do, then I rather go for LT spice.

This is important to know as my current project will take longer than 14 days.

Best regards