She reported her correct age and they told her she could compete, WDEL-AM reports.
After officials realized their mistake, they broke the news that she would not be able to compete in the Miss America pageant in September and that she was being stripped of her title and all prizes associated with the title - including an $11,000 scholarship that was going to help her pursue her master's degree in social work.
Longacre says she didn't know about the age stipulation and she thinks she's being punished for the organization's mistake.
Runner-up Brittany Lewis was crowned Miss Delaware 2014 Thursday night.
What's on tap this weekend: June 27-29
Between big name concerts, Greek festivals and NASCAR - there are plenty of fun events happening this weekend around Cincinnati and Northern Kentucky.