Error Export registrants of the new version 2.11.1

After I updated the latest version of the Event Booking 2.11.1 from version 2.08, I cann't download / export de Registrant list.
Error message (partly in Dutch !) is as follows:

De webpagina op osvgolf.nl/administrator/index.php?optio...sk=registrant.export is mogelijk tijdelijk uitgeschakeld of permanent verplaatst naar een nieuw webadres.
ERR_INVALID_RESPONSE

When I restore the old version (2.08.) I don't have this error message and export is no problem!

What should I do to correct theis situation??

Hi

As replied via email, please go to Events Booking -> Configuration, set Export Data Format config option to CSV

After that, the issue should be sorted

Regards,

Tuan