Same here, cannot create new tickets, only RSVP.
My thread:
https://theeventscalendar.com/support/forums/topic/making-tickets-not-possible-only-rsvp-is-showing/
Also cannot save RSVP due to date issues. Error Message “End sale date greater than start sale date”
Probably a date localization issue.
please resolve
========================
PLEASE LEAVE FOR SUPPORT
Reporting the same issue as: https://theeventscalendar.com/support/forums/topic/cant-see-ticket-option-and-rsvp-cant-save-the-ticket/