Deleted event still visible

Hi,

I’m using the Events Manager plugin but I’m running into a problem… I’ve deleted an event, and when I look in the site I see that the event is deleted. But when I log out of the admin panel and I refresh the page, my event is still visible… I can’t find the event in my admin panel anymore but it’s still showing up:
https://www.omeneeff.nl/agenda-activiteiten/

It’s the event: ‘Antilliaanse carnavalsavond’.