Trying to reactivate Tools; won't take my key

To save space, I removed Parallels Toolbox and now want to reactivate it. I selected and ran "reinstall tools" but could not find a way to run the program. I then searched for and ran the exe file, which asked me for my key. When I entered it (copy & pasted from my registered products), I got a message that it had expired. I assume that I should not post the key here.

 

Hello, we've checked your account and found that you've got Parallels Toolbox as a bonus software with Parallels Desktop.
With a perpetual Parallels Desktop for Mac license you get a three-month subscription for Parallels Toolbox for Mac and Windows.
Please check this KB article for more information and let us know if you have any additional questions.