Good evening Greg and welcome to the Events Calendar forum!
Thank you for reaching out to us.
We are sorry to hear about the shortcode not working properly on your install. Yikes!
I would love to help you with this topic.
However in order to do so, could you simply repost this question in the correct forum: https://theeventscalendar.com/support/forums/forum/events/events-calendar-pro/ ?
This, among other things, will allow us to use private replies to share sensitive information (which is not possible in the current forum).
And, while you do that, as a first troubleshooting step, could you please provide us with your complete system information in a private reply using the instructions found in the following link?
https://theeventscalendar.com/knowledgebase/sharing-sys-info/
Finally, still while you are there, could you send us an example of a page that has the shortcode in place (URL) ?
Best regards,
Geoff B.