A workaround I've been using the last couple days:
If you're loading a link to the old site:
1.) Copy the URL that won't load:
2.) Paste that URL into a Google Search:
3.) Click the little green arrow at the end of the green text:
4.) Click the 'Cached' Link:
5.) At this point, the old site should pull up. It might take a second or two to load:
I have no idea how long this workaround will work if it gets Cached again after it went down, so, just save everything you think you may need as soon as possible.