My opt Application ruturn back to me ??

Hi everyone,I got my application back to me and its attached with rejected letter says: ( The application/ petition has not been fully completed. one or more of the following field(s) were not completed:- AddressWell, I am confused because I do not know which address are they talking about even though I put my address correct on the application.But I’m thinking about my SEVIS’s address is different than what I put on the application. Any help? Ideas guys???

Well, if you are not sure of the error, one of the things you can do is speak to your DSO at School and get help or you can go to a nearest USCIS location and get help as well by booking an appointment using InfoPass :