Displaying Venue name and other info on the calendar widget

I’ve been unsuccessful at trying to display information of the event on the calendar widget. What I’m trying to do is implement a popup that displays info for a single event. I’m able to post the name and start date of the event with

esc_attr( $titles ),
eo_get_the_occurrence_start(‘l,F j, Y // g:ia’, $event->occurrence_id )

but none of these work for venue name:

eo_get_venue_name($event->occurrence_id),
eo_get_venue_name($event->ID),

Here’s an example of what the finished product should look like:

https://i13.photobucket.com/albums/a252/Cribblets/final-result.png

https://www.ads-software.com/plugins/event-organiser/