Hide email tag does not work

Hi,
I am trying to hide emails from showing in popup descriptions by using this tag [attendees email=”hide”]

But the emails keep displaying.

I use Xola to integrate booking capabilities with my Google Calendar–could this be causing the inability to hide emails?

Here’s a page with my calendar: https://www.yexplore.com/book-a-tour/

https://www.ads-software.com/plugins/simple-events-calendar/