Have you tried the obvious:
-reloading the webpage?
-closing out your browser and returning?
-rebooting your PC?
-clearing your cookies/cache and retrying?
After trying that without success, possibly your browser settings are causing a problem.
You could confirm that by changing browsers (what appear to work on this site are: Microsoft I.E., Mozilla Firefox, and Google Chrome). If that approach resolves the issue, I suspect you need to adjust your regular browser's settings.
sftac (not 'staff')
Hello, Staff of Chess.com.,
Just a few minutes ago, I tried to log in to Live Chess. but all I received was a blank screen with a small rectangle box in the centre,which said:-
The page at live chess.com, says:
Abstract item not implemented (zb07c7)
Prevent this page from creating additional dialogs
Could the Staff or anyone who are aware of this situation, please explain??