Good evening Gianni and welcome to the Events Calendar Support forum!
Thank you for reaching out to us.
I would love to help you with this topic.
This typically happens when you have a combination of free tickets (WooCommerce-based or RSVP) and paid ones.
We have a few snippets that can handle this. I recommend trying a few out to see which one you prefer.
You could apply one of the following snippets in the functions.php file of your theme (without the PHP tag at the top):
- https://gist.github.com/GeoffEW/a63180206b4ebb3a1f30511228816652
- https://gist.github.com/GeoffEW/b440feef873af841d023c0bf0839e93f
But first to be extra safe, before making any changes to your functions.php file, you should make a backup of that file.
Let me know how that goes.
Best regards,
Geoff B.