Hello, I am in the process of publishing my app made in flutter in the appstore connect and in the review process it presents us with the following problem

Guideline 5.2.3 - Legal Your app contains content or features that may violate the rights of one or more third parties. Specifically, your app provides potentially unauthorized access to third-party audio or video streaming, catalogs, and discovery services.

Your app and its contents should not infringe upon the rights of another party. In the event your app infringes another party’s rights, you are responsible for any liability to Apple because of a claim.

Next Steps

To resolve this issue, please attach documentary evidence in the App Review Information section in App Store Connect evidencing that you have all necessary rights or permissions to the third-party audio or video streaming, catalogs, and discovery services in your app.

Once we have reviewed your documentation and confirmed its validity, we will proceed with the review of your app.

I appreciate if you can guide me on how I can get the documentation or the necessary ones, thank you.