I am new here and I submitted my first article today which, of course, got rejected…

The e-mail says that I need to revise it before it can get accepted - the reason for rejection was that the article did not follow the guidelines.
I realized my mistake (using first person POV) and so I re-wrote the article.
I was trying to submit it, but now I get the message: Uh Oh, This Submission is Not Complete. This Title is Already Registered!
Is there something I am missing here? Can I not revise and re-submit my article? Or is there something else?
Can someone please help / guide me?
WriterGurl