No shipping method available

Thank you SO much for this plugin. It’s exactly what I’ve spent the last 3 days looking for.

I’ve set everything up, and tried to make a booking on my website to test the entire booking process, but on checkout, I get this

There are no shipping methods available. Please ensure that your address has been entered correctly, or contact us if you need any help.

I don’t know how to fix this. Could you help me, please?