i keep getting this change request. "Please resubmit with an attached build. Please do not use the Pre-Launch Submission option. We look forward to reviewing your application in full." can anyone tell me how to change that?

Hi everyone, I'm a new developer. I'm uploading my SaaS network...think Netflix and I'm almost at the end and ready to submit, but the submit button is grayed out and when I hover over it is says, my first submission needs to have a binary attached!!...