This evening (Friday 2nd November) I was happily listening to some MP3 track from Box when suddenly, when clicking on a LINK to Box I got this:
so I typed the Box URL into the Address Bar at the top:
http://www.box.com
... and got the same.
I have then checked the Box LINKS with YKF (the Yamaha Keyboard Forum .. https://www.yamahakeyboardforum.com/) and Eileen's site (Yamaha Keyboard Players .. http://www.yamahakeyboardplayers.com/) and got the same.
Hang on a minute ... !!!
It's all come back again (now 10.25pm).
Panic over.
Hugh