If it's tiny, you might be alright. But, it's definitely not good. You could always risk calling to make the change, but if it's small, I wouldn't do anything.
You gotta post more details. Error as in your essay mentioned you enjoy snowboarding when you really enjoy skiing, or error as in "valedictorian at my school" when you have a 3.2?
You gotta post more details. Error as in your essay mentioned you enjoy snowboarding when you really enjoy skiing, or error as in "valedictorian at my school" when you have a 3.2?