Howdy Emilio,
I am sorry to hear you are having a couple of issues. I’d love to help you figure these out.
This might seems like a strange thing to try. Could you try deleting the license key from WooTickets, and saving. Does it disappear? If you try adding just the Events Calendar Pro license, does it save? When you go to save, are there any JavaScript errors in your browser console?
And I can`t use the ticket plugin, only 1 time I can create a ticket, never work again.
What happens when you try to create a ticket? Do you get an error message? Or does it simple not save much like the license key?
Cheers!
– Brook