Ben Garnham, from Caerphilly county in Wales, was taken to hospital after a backflip attempt by Benji the clown misfired.
Adam Ingham, a director of Circus Zyair, said they will never perform that part of the act again. He also apologised.
Garnham met the clown in Carmarthen on Friday night after being given free tickets to the show.
The self-employed DJ told BBC Wales: "I'm glad I could meet Ben last night - I gave him a big hug just to reassure him, I don't have any animosity towards him and I've made a really good friend.
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The circus was also criticised for the way the clown and other circus staff carried Garnham backstage, the report said.
Ingham said it was an "unfortunate accident and it shouldn't have happened".
He said the circus always had at least two qualified first-aiders on hand and he "completely understood" the criticism of how Garnham was removed from the ring.
"We are all devastated. We would never wish this on anybody and we are very grateful that he is OK."
The clown has been doing the back flip stunt for more than 10 years without any accidents, Ingham added.
The circus has reviewed its procedures and training and stopped audience participation, the report said.