Calendar is blank

We’ve just replaced Simple Calendar and added the Tockify plugin (https://www.ads-software.com/plugins/tockify-events-calendar/) to one of our customer sites. See it in action here – https://4wardeveruk.org/resources-events/events-remembrance/

Works a treat and frequently updated by developers.

Was a shame to leave Simple Calendar but it sadly is not fully stable with WordPress 5 upwards!

$96 a year for a calendar, no thanks. It still doesn’t support combining multiple calendars and I had just as well embed a Google calendar in an iframe.

The basic package is FREE for life!
Yes it only includes 1 calendar but for some that would be enough.
There are few options out there. This is just one, but I get your point.