Hello Sarah! Nice to see you again and hope all is well. 🙂
If I remember correctly, you’re using Jetpack’s Sharing module for social sharing–is that correct?
If so, there is a known conflict between The Events Calendar and Jetpack, specifically tied to the social sharing module. Unfortunately, there isn’t a fix available for this on our end, but we have seen others solve it. Check out this article for more details on that and see if it will help in this case as well.
Cheers!
Geoff