Why google play store Ban my android application?

Hello All, Kindly if anyone has the same issue kindly let me know. I have developed an android app facebook video downloader to download videos from facebook after launch of first week i get banned from google with email Alleged trademark infringement issue. My question is there are many apps like this why google ban me. They send an email from facebook authority that they have contacted them to ban the application over Alleged trademark infringement. Kindly tell me any solution

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