Hey Thomas,
This is a theme-specific question related to Avada itself, so we unfortunately don’t have much insight here.
However, Avada has both support forums and this great documentation related to using to using it with The Events Calendar → https://theme-fusion.com/avada-doc/special-features/how-to-use-the-events-calendar-with-avada/
Give that stuff a read and contact their support team for any further theme-related questions, and you should be good to go 🙂
Cheers!
George