Can I reapply for a position once its closed?

After reading the post about the "bugs", I realized that my application may have been rejected because my profile is incomplete. I would like to complete everything minus the references and then resubmit. The question is "how" ? I don't see an option to re-apply once closed. This is for the position of Autism specialist in Qatar. I believe I am qualified, but I made some errors creating my profile and didn't realize until too late. The posting still says there are 5 positions open so I would like to try again. Please advise.