Good evening Filip and welcome to the Events Calendar forum!
Thank you for your interest in our products.
We’ll be glad to answer your questions.
After one year, when your license expires, the plugins will still work if you do not choose to renew.
But, you will most likely need to “freeze” your the Events Calendar related plugins to their current version (all of them).
You can choose to renew at any time and get access to both premium support and updates once again.
Let me know if that helps.
Have a great day!
Geoff B.