Due to a family bereavement, club director and GFH Capital executive David Haigh needs to travel to South America at the start of next week and a new date will now be arranged.
A club spokesman said: “Regretfully, due to personal circumstances, we are going to postpone the event, but will arrange a new date as soon as possible once the match schedule becomes clear post-Man City game.
“We’d like to thank everyone who has shown an interest and wanted to come along, and we look forward to seeing everyone later in the season.”
Tickets already issued will be valid for the new date, when confirmed.