Dimitrie Apanui pleaded guilty in the Whakatāne District Court to one charge of ill-treatment of his puppy, King.
The centre is owned by Dr Mohammad Alayan, who was injured in the terrorist attack.
The man says he "zoned out", causing him to slip.
Stephen Kearny says his side will do their best to rectify their mistakes as they prepare for the Manly.
"Music is very important to me but nothing comes before my family and my health."
The automated robot can pick an apple every second off specially grown trees.