At the bottom of that page is some error code text which reads:
Warning: include(/home/content/p3pnexwpnas01_data01/33/2228533/html/wp-content/plugins/wootickets/src/views/wootickets/tickets.php): failed to open stream: No such file or directory in /home/content/p3pnexwpnas01_data01/33/2228533/html/wp-content/plugins/wootickets/classes/class-wootickets.php on line 485
Warning: include(): Failed opening ‘/home/content/p3pnexwpnas01_data01/33/2228533/html/wp-content/plugins/wootickets/src/views/wootickets/tickets.php’ for inclusion (include_path=’.:/usr/local/php5_4/lib/php’) in /home/content/p3pnexwpnas01_data01/33/2228533/html/wp-content/plugins/wootickets/classes/class-wootickets.php on line 485 – See more at: http://therunningtourguide.com/event/ancient-verulamium-1-july/#sthash.3a0Cu2RN.dpuf
Not sure if I should be asking you or Woo Commerce about how to troubleshoot this issue? I look forward to any advice. All my plugins are up to date. I’ve gone through deactivating all other plugins (except yourself and Woo) as well as switching to the default theme.