Getting the dreaded 404 Unauthorized Error just now. The site was working sluggishly earlier, crashed once on the Book Now, not returned booking result on another attempt 20min later. However after I closed the browser (that automatically clear history etc) and restarted again it seemed to work normally for may be an hour. Had dinner then came back to finish bookings, got the 404 Unauthorized error in the past 30 min on and off try.