Monetization can be disabled for several reasons. Here's more about it and what to do if it was an error: https://goo.gl/cNar2n . Hope this helps!
YouTube is just bullshitting they don’t want us having their money but the big dogs
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
YouTube is just bullshitting they don’t want us having their money but the big dogs