The name is wrong in teaching marriage 4374748388

On the same day my niece and a girl from the house next to them got married. The rabbi who teaches marriage makes a little mistake. When I was teaching my niece's marriage, she forgot her name and said someone else's name. But at that time the one whose name was mentioned was not in front; Rather my niece was in front of him. He also raised his hand towards her and gestured. When the matter was told to him, he said, "No problem, the marriage is over." We did not force him because he was trustworthy and wise. Later, she went to teach someone else's marriage without getting married for the second time. But now there are rumors about it among relatives. So I want to know the right solution to the issue from Huzur; Isn't that right? Has my niece's marriage been valid? Please let us know. 5855197278