Following is the message-- and had to reject it because it violates our device and network abuse policy and section 4.4 of the Developer Distribution Agreement. If you submitted an update, the previous version of your app is still live on Google Play.
Here’s how you can submit your app for another review:
Modify your app to make sure it doesn’t access or use a service or API in a manner that violates its terms of service; for example, by enabling background play of YouTube videos. Read through the Device and Network Abuse policy for more details and examples. Make sure your app is compliant with all other policies listed in the Developer Program Policies. Remember that additional enforcement could occur if there are further policy issues with your apps.Sign in to your Developer Console and submit your app.
My app has a button which opens WhatsApp directly from it and also I have included youtube website.
Please tell me whats the problem