Hey Farhad,
It should work about 70-80% successfully. We have several known bugs with WPML, but are working hard to maintain as much compatibility as possible.
We have an article about how to set up our plugins with WPML for maximum compatibility → https://theeventscalendar.com/knowledgebase/setting-up-the-events-calendar-with-wpml/
If you set up your site with those methods, and find bugs with WPML, then we can issue a refund for your purchase from us within 30 days of your purchase. So you may find it easiest to just try the plugins out, see if it works for your site, and if not, request a refund.
Cheers!
George