Website Error, Unclosed block and 404 Not found

[Tcip]

I found some errors on the demo website (https://adobe-fonts.github.io/source-sans/).

1. Unclosed block on line 126, Index page

@media (prefers-color-scheme: dark) {

line 126

@media (prefers-color-scheme: dark) {
  body {
    background-color: #222;
    color: #fff;
  }
  div:hover {
    background-color: #333;
  }
  .ribbon:before {
    background-color: rgb(221, 221, 221);
  }
  .ribbon:after {
    color: #000;
  }

2. File not found in source-sans-3.css

https://adobe-fonts.github.io/source-sans/WOFF2/SourceSans3VF-Upright.otf.woff2 
https://adobe-fonts.github.io/source-sans/WOFF2/SourceSans3VF-Upright.ttf.woff2