http://www.standard.co.uk/news/london/london-oktoberfest-cancelled-half-an-hour-before-doors-were-due-to-open-because-of-operational-a3086611.html
Apparently more people showed up than the organizers were expecting and were somehow affected by this so-called "beer" and became difficult to control last night, organizers decided to cancel the remainder of the events outright just 30 minutes before start, leaving pre-paid attendees and visitors stranded
Wow... Dufftober fest in Springfield want that bad :D