Hi Carolyn
Sorry for the confusion. You should’ve received an email containing a link to download Events Calendar Pro and the license key.
Can you go to My Account » Downloads and download the Events Calendar Pro plugin. You’ll need to keep the free The Events Calendar plugin active as well.
Then get your license key, and go to Events » Settings » Licenses to enter it.
It looks like you tried to do this, but perhaps in the Event Aggregator field instead.
Let me know if this works now.
Thanks
Courtney 🙂