[O] org-refresh-stats-properties: Stack overflow in regexp matcher

I suddenly am unable to open my org agenda. Invoking ~C-a~ and selecting any agenda command results in ~org-refresh-stats-properties: Stack overflow in regexp matcher~ The debug trace looks like: #+BEGIN_SRC Debugger entered--Lisp error: (error "Stack overflow in regexp matcher") re-search-fo

[O] org-refresh-stats-properties: Stack overflow in regexp matcher

Apologies if this is a duplicate. I first sent when I wasn't registered with the mailing list. Looks like org Gmane is down http://news.gmane.org/gmane.emacs.orgmode I get a 404. I suddenly am unable to open my org agenda. Invoking ~C-a~ and selecting any agenda command results in ~org-refresh-s