Sage 50 Activation

SUGGESTED

I have sage 50 CA installed on my computer.  My bookkeeper wen to log-in and a pop-up screen for Product Activation came up.  It was asking us to enter the Company Name, Account ID and Key Code again.  When we entered the information, an error message came up stating that :The information you have entered is invalid.  Please make sure you have entered the Company Name, Serial Number, Account ID, and Key Code correctly".  

This process was repeated 3 times with the same result.  

I do not need to purchase Sage 50 2020 CA.  The current version I have is sufficient for our needs.  I accept the fact that Sage no longer provides support for this version.  However, I believe the software should still work.  

Any assistance would be appreciated. 

Thanks