Error trying to install the trial version of Prime 3.1

I downloaded the free version of Prime 3.1 and now am trying to install the free 30 day trial. Everytime I go to log on so I can do so, this message pops up:

The bottom link sends you to a webpage where you are asked to change your password. I have tried this numerous times and know the password is correct because I am able to log in to my account to write this post. I have also attempted this at different times throughout the day to try and see if that helped, and it has not. Has anyone else had this issue resolved?

Thanks in advance for any and all help provided!