Dubb and Calendly (free Acct) not connecting

I suspect that the reason the handoff fails is that I don’t have a paid Calendly account and wanted to confirm. I’m updating some Dubb training and thought I would check in since the connect is a simple handoff with a calendar link and the link works in a browser.

The message I receive is that Calendly refused the connection and thought I would see if anyone has had any experience with it.

Just checking in

Enjoy the day,