Thanks for reaching out, Angie. I’m sorry to hear this!
These sorts of issues are unfortunately pretty tricky to track down usually—there can be server-level or even DNS-level contributors to this sort of problem, which can take a very long time to resolve and require collaboration from multiple parties.
So I have taken a simpler approach here to try and deliver the fastest resolution possible: I have deleted your existing Business License for Events Calendar Pro and added a new one to your account.
No, don’t fret about this! There is no extra charge to your account or anything, and this license will be valid until the same date as the original one (Feb 2, 2018).
Head to http://theeventscalendar.com/license-keys to locate your new Business License on Events Calendar Pro. Use it on the sites you want to be licensed, and remove the old license key from anywhere you see fit.
Let us know if this helps!
George