Cannot Delete Activity Updates Buddypress

Cannot seem to delete any activity from the main sitewide activity page or from the group wall. I get a 404 error page after clicking "delete"

Here is the error: http://thinktaiwan.com/activity/delete/124?cid&_wpnonce=b785d8b30b

This is the 404 page I get when clicking delete. Anyone have any clue as to what I can do to fix this? Thanks!

Mike