Stream Now is unavailable for Livestream creation at the moment – we're working on a fix. Streaming via Events and Webcam are still working normally. We’ll keep you posted with updates here.
Monetization can be disabled for various reasons. Depending on the issue with your video/channel, you may be able to take steps to enable it. Our Help Center article provides more info on this: https://goo.gl/eJuDpn . Hope this helps.