I just tried to check the bug forum to see if they had suggestions on how to deal with the problem and even the forums seem to be having issues. This morning I also received server errors when trying to access stats.
The connection has timed out
The server at submit.shutterstock.com is taking too long to respond.
The site could be temporarily unavailable or too busy. Try again in a few moments. If you are unable to load any pages, check your computer's network connection. If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web.