Report page shows no entries

Hello ive been running this pluging for some weeks now and it works, I can see the answers at each order. But the Report page shows nothing. Zero entries. All it says: no orders found.

Which is strange because dozens of orders have the field filled in when you check dive into the order it shows it excellently.

Is there a known reason for the Report page to be empty?

Thank you

ps / export function also works flawlessly