Hi Dirk,
I know the issue that you've hitting now
where as I click the broadcast notification from Dive Cave it will redirected to the 404.
I've temporarily install mijoSql in your backend and try to run a query to check the url stored in the #_social_notifcation table, seems like your server has blocked our IP to access your site
http://screencast.com/t/Ems9jOBkafQ
Perhaps, can you unblock our IP back ( 124.13.241.185 ) and provide us with your PhPmyAdmin to check the url stored in the database?
You can add the information needed by edit your first post in the Details section or you can just include your site's access once at
http://stackideas.com/dashboard/site rather than needing to keep adding them in your replies
Thanks for understanding