Play store error

I’m Facing This Error-

Issue with your app
We found that your app contains security vulnerabilities, which can expose user information or damage a user’s device. This is a violation of Device and Network Abuse policy. Specifically, your app(s) are vulnerable to Exposed Firebase Cloud Messaging Server Keys. To address this issue, follow the steps in this Google Help Center article.

how Can I Solve This ?
My Every Project Getting This Same Error