Registrants won't show in the backend in the register "Registrants"

I installed the EventBookin for the first time (version 3.6.0).
All things works fine except the registrants. They won't be shown in the backend. When I watched in the database all registrants will be shown. On the dashboard I also see the #Registrants. When I go to the Registrants I don't see anyone.

Do you know which settings I have to change to see the registrants?

Thank you!

Hello

Please go to Events Booking -> Configuration, check and make sure one of the two config options below set to Yes (or both options set to Yes) and it should work as expected:

1. Include Group Billing Records in registrants management
2. Include Group Members Records in registrants management

Regards,

Tuan