Booking problems

When I publish my events, comes the error
Your event details are incorrect and can not be published, please correct these errors first:
Missing fields: ticket_name.

Can you test while running the default WordPress theme?

The theme is virtue ver 441. I tried wordpress theme Twenty fourteen and twenty Sixteen, and it was the problem.
All my plugin was cancel, the same problem.
I maked a new site, install new wordpress, update, and install Events manager, make the setup and tried, the same problem.
Every time it telles me: Missing fields: ticket_name.

https://privat.forhyggensskyld.com

This is a double post of your other thread about the same issue:
https://www.ads-software.com/support/topic/booking-problems?replies=5

We’ll continue replying there. Please don’t create multiple threads on the same topic.