Front-end demo site "Daily Recipe" (SAP CDC/Gigya)

Hi everyone,

I'm new to SAP Customer Data Cloud (Gigya) and wanted to use the CDC demo site "Daily Recipe" offered by SAP to learn how CDC works (https://developers.gigya.com/display/GD/Demo+Site).
I get this demo front-end started in my browser via localhost. But unfortunately the demo doesn't interact with my CDC site I created in the CDC Console (back-end) like opening my registration screen. I simply followed the instruction for installation and added my API and Secret Key to the respective file. The screen-set collection name should be correct as I didn't change it.

Debugger shows following errors:

Anybody ever used the demo website successfully and can help?