Error creating recurring or repeating events

I’m testing out this calendar plugin. When I try to create either a recurring event (eg, a yoga class every Monday), or a repeating event, I get the error “This event has validation errors and cannot be published until they are fixed: Main recurrence set times are required.”

I have set my recurrence to Weekly, every 1 week, on Tue. Event duration 1 day.

Recurrencies between (next Tuesday) and (a far future Tuesday)

Times: 9.00AM – 11.00AM

Timezone: London. Status: Active.

But it’s not working. Why? I’ve activated WP Safe Mode but to no avail.

Thank you!