We’d like to know more. Have you applied for the first time and were rejected or was your channel monetized earlier and got rejected now? Also, help us with the screenshot of what you see on this page: https://goo.gl/297Xrv ? Appreciate additional details!
If your channel is out of compliance due to reused content, this typically means that the content is not original/auto-generated. Here's more about reused content & how you can avoid them in future videos: https://goo.gl/Vnir3S