Notifications screen doesn't work (BB-1457)

I've been trying to view the notifications screen (https://bitbucket.org/account/notifications/) to turn off the stupid emails I get every time someone grants a group I'm in (atlassian developers) access to a repository. But when I do, the screen sits there for about 10 seconds, before 503ing.

By the way, do we really want notifications when a group you're in is granted access to a repository? There are over 100 Atlassian developers, do they really all need to know when someone shares their 20% project with the Atlassian developers group?