I've seen the same/similar issue. Click my bookmark for the Forums, the page doesn't load and I get window offering to take me to the Wayback Machine (a legitimate thing) version of the Forum page.

I haven't done any specific troubleshooting. It seems that wait a bit, close and restart the browser (Chrome on Win 10) or even reboot the PC resolve the issue. Until it happens again.

I have noticed that getting to the FOrums isn't the only sign of an issue. When this happens other web pages, including gmail, MLB and Ancestry slow to a crawl loading pages, or don't load at all.

So maybe its a Florida thing!

Rick