jticketing field not required creating events in jomsocial

Hello,
after that we installed jticketing we were trying to create events using it throught jomsocial,

choosing to create an event with the ticket all seems to work, but actually we cannot create events without tickets, as you can see in the attached image the field seems to be "required" and i don't know where i can set it as not required,

waiting for your reply, have a great day