Thanks for reaching out. Just to confirm, were you a part of YPP earlier and were earning revenue or is it the first time you've applied and got rejected? Keep us posted.
Thanks for the info. If your channel is out of compliance due to reused content, we recommend taking a look at our YPP policies and make changes to your channel, content and thumbnail accordingly: https://yt.be/help/AsbB . You can always re-apply for monetization after 30 days.