Webnus products attention

Hi,
Thank you for contacting us. Modern Events calendar is a popular Events plugin that X theme and divi theme are using it. seems you have personal issue with this plugin. You can refer to below links
https://theme.co/apex/forum/t/extension-modern-event-calendar/10218
https://www.elegantthemes.com/blog/divi-resources/how-to-add-event-scheduling-and-booking-to-your-site-using-the-pottery-studio-layout-pack
And if you check below link you will see Modern Events calendar is one of the most popular events plugin
https://athemes.com/collections/best-event-calendar-plugins-for-wordpress/