Exceptions taken when "Loading Amber kernel..." on Mac M1

[Michael Burns]

I recently downloaded and installed Amber on my M1 MBPro.   

When I try to start amber and connect to its index.html I see the 'Start legacy in-page IDE' and 'Popup Helios IDE' buttons, then "Loading Amber kernel..." and nothing more.

In the console I see two 'Failed to load resource (404)'.  config.js and amber/es6-promise.js

Error: Script error for "amber/es6-promise".  https://requirejs.org/docs/errors.html#scripterror...

And 'Unhandled Promise Rejection: TypeError: undefined is not an object (evaluating 't.onDisconnect')

Confession:  I'm new to Amber,  Node.js,  and Javascript in general, so excuse my ignorance.   

Screen capture attached.

BTW, I get the same result using Safari and Chrome.

I do notice that there is a es6-promis.amd.json file in my amber directory.  

What else should I explore?  

Ideas? 

TIA