Connecting Gravity forms to Make.com

Hi - Building my first screen… Wanted to connect Gravity Forms (PRO) to make.com
However I get a “Username error” … HELP!

The error “Fejl” says: “Unknown username. Check again or try with your email”
Kebab? - I did try diff. Connection names and diff Host URL’s…
Nada works! - What am I missing - Thx for your time and help!

Peter