Are the son's recurring injuries related to the Aqiqah, which was with a single sheep?

The original principle for the 'Aqiqah is two sheep for a boy and one sheep for a girl. However, if one sheep is slaughtered for a boy, it is sufficient, and the Sunnah is fulfilled thereby. There is no blame on you for what you have done. The frequent falling of a child is natural, especially at the beginning of walking, and it has no relation to the 'Aqiqah.