I DO NOT report any errors to the Clerks office/Registry.  If someone else did the search recently they would not find the document either, so my having it corrected puts all previous searchers at risk.  I print out from the computer the index page, had to ask how to do that but it works and covers me, as in most of the counties I cover they make a notation in computer system that says corrected and gives a date but no where does anything tell you what was corrected.  So I print out the index showing my person or company name, it usually has a date on it and send this to my client.  This way I am protecting myself and hopefully the person who did the same search before me.  Just doesn't help the person searching the same property in the future.