Trouble signing in.

I was wanting to use the Flash version of the game on my old macbook(running Mac OS 10.12.6) with the browser that still supports flash, Safari Version 12.12, but I have trouble navigating the website on said browser, in particular the sign-in through Discord doesn't seem to work. What browsers are folks using to use the Flash version? Which will run on my Macbook and ALSO allow for the sign in through Discord?

we mostly recommended you download the client if possible for better experience

I see no client listed that runs on Mac OS 10.12.6 The ruffle emulator starts on Firefox, but only the UI loads, with a black background and no assets load. I just thought I might be able to play it on the same browser I played the original. There is a link to play the game in flash, so I figured there was some browser that both let you sign in, and also ran flash.

use a VPN , it will work . the problem most likely is your IP. the server is not reachable in many locations...