scorekeepers question

[softballmom]

I was the scorekeeper for our local travel team. The manager of our 9 year old daughter's travel team asked that I consult with him before I marked any hits or errors for our team. After our first game I had an error marked against his daughter at 3rd base for making a wide throw to first base which pulled the first basemans foot off the bag resulting in a safe runner at first.
Our manager insisted that it was not his daughters throwing error but the first basemans error for pulling her foot off the bag.
He told me not to mark any errors "just to be fair"
I went ahead and marked the E-5 error. After that I was asked to either consult with the manager on every play or resign from score keeping.
I resigned.
I feel it is unethical for a manager to request this from a scorkeeper. It seems as though he is trying to cover his own daughters mistakes at the expense of the firstbaseman.
Was I wrong?