Jodie Marsh said: "The Diana Award National Anti-Bullying Ambassadors Conference is a great event that brings hundreds of young people together to stop bullying. I wish there was an anti-bullying programme that was available to me when I was younger."
More top news
The Discovery School in Newcastle has said there was "no excuse" for the serious error.
The 21-year-old victim was attacked on Tuesday night.
Players have suffered racial hatred from the Premier League down to the grassroots, according to figures obtained by ITV News.