ENOTFOUND error with Perplexity API

What are you trying to achieve?

I am trying to set up my first Perplexity API call. Complete novice and non-coder. I have followed the API Documentation and read many web articles and it all seems set up correct

Steps taken so far

Reviewed API Documentation. Read many articles on how to set up, watched several videos. Completed dialogue box as I believe I should to ensure a successful call. I get an ENOTFOUND error, see screen shot below

Screenshots: scenario setup, module configuration, errors