youtube not monetized click to provide proof

Hi Everybody,

i make a YouTube Channel and make ads on it
and every things going very well

but last time i get ( ! ) at all my videos ( youtube not monetized click to provide proof ) ?!!

what should i do to change ( ! ) to ( $ )

Thanks

From personal experience, you need to re-upload them with edited/altered content (music, visual changes perhaps) to bypass youtube's ability to spot pre-existing content. You apparently used copyrighted material in your videos and Youtube is great at picking that up. If you're re-uploading other peoples videos just be sure to alter them in subtle ways.

100% agree with funkybunker you have to re-upload all to monetize your videos again