Search results

What I mean is that the results in the list box are not the same. but when I click on a result of a car which owner owns more than two results in the list box. it gives an error

Hello, I am totally new with access and I have a question about an error I get on some results. I have a search in a list box which is working, but sometimes when I click on a result in the listbox, I get the error 3001. I know that I only get this error when two or more results from the listbox...