I too have been experiencing this issue. When a buffbot's feed is not working properly, this hang issue tends to happen. This is not the first time I've seen it either. I'm beginning to think we need to come up with a new method of informing potential new buffbots the ins and outs of setting one up properly for mafia inclusion. On a few occasions I've sent off kmails to folks controlling bots to ask them to update their feed page when their prices got changed. It would appear that the latest wave of issues is stemming from a plethora of issues:
Kolabuff and Testudinata's website show's a page error when looking for the XML stylesheet, but the actual XML is there and available. NO points to the forums (no specific page, as is expected.) Niten points to a holder page indicating the site is no longer being ran or maintained at this address (perhaps someone didn't renew the DNS for the server), as this is the same server as The Professor, the issue carries over. zonkttc's page shows up, too bad he's rarely online and functioning (Last Login: May 05, 2010)! Notbot has a good page and appears online.
Hoping this helps!
-=DoctorRotelle