Hey there Nicole. Thanks for reaching out, and for your purchase of the Events Calendar PRO plugin. At this point the recurrence options do not account for endless recurrence patterns – since it needs to create a separate entry for each instance of the recurrence, WordPress would not be able to handle the attempt.
We have had a few requests for such functionality, though, so I suspect it’ll be added to the code at some point if we can make it work. Might be wise to add a note in the “Feature Requests” thread (https://theeventscalendar.com/support/forums/topic/events-calendar-pro-feature-requests/), as that’s what we’re using to help determine the order of feature additions down the road.
Sorry I couldn’t offer up more here in the short-term. Please let me know if I can do anything else or if you have any other questions on this.