If you upload content from multiple sources, or reupload/repurpose someone else’s existing content, then you won’t be eligible for YPP. Check out the FAQs and best practices here: https://yt.be/help/reused-content …. Note that you can always reapply in 30 days.
I was apart of the YPP earlier and got demonetized now. I think you guys made a mistake. My channel is my own content and noone else’s. My own edits and own videos.