Game won't start -- Javascript error

[Mozai]

A JavasScript error occurred in the main process
Uncaught Exception:
Error: listen EACCESS 127.0.0.1:215
at Object._errnoException (util.js:1024:11)
at _exceptionWithHostPort (util.js:1046:20)
at Server.setupListenHandle [as _listen2] (net.js:1334:19)
at listenInCluster (net.js:1392:12)
at doListen (net.js:1501:7)
at _combinedTickCallback (internal/process/next_tick.js:141:11)
at process._tickCallback (internal/process/next_tick.js:180:9)
at Function.Module.runMain (module.js:685:11)
at startup (bootstrap_node.js:196:16)
at boostrap_node.js:622:3

After I hit okay, I get a large blank white window and (crackling) music plays... but all I can do is close the window.

[Mozai]

In `resources/app/main.js` I found this:

//experimenting to see if running a tiny server is viable for achievements
const hostname = '127.0.0.1';
const port = 215; //game comes out on 2/15/19

ports 0-1023 are for administrator-level users (eg. system services) only. Users and games can't bind to those. Edited the file to

const port = 19215;

and now the game starts without an error message, but still blank white window, crackling music, no reaction to mouseclicks nor keyboard.

[Mozai]

Tried starting the game by loading 'title.html', got the music (without crackling) and the window wasn't a blank white page, it was a crude tree and three buttons: LOHAE, LOMAT(Demo) and ???. I click on LOHAE and get

Uncaught : Instance of 'b9' in breeding.dart.js:1780:3

Clicking on LOMAT(Demo) gets me a new blue screen, new music, and some clickable buttons "Talk" "Trade", "Travel", "Hunt". Mousing over any buttons gets new errors, something about trying and failing to fetch "www.googletagmanager.com" and

Uncaught (in promise) DOMException: The fetching process for the media resource failed in main.dart.js:4547

Starting to think this game is unplayable.