Not sure where to post this.

I watch YouTube regularly through my Amazon Firebox. A few days ago I received a warning informing me as from 01/01/18 I would no longer be able to watch YouTube through my Firebox. I spoke to Amazon through their chat facility but they didn?t seem to be aware of the problem but said they would look into it. I?ve heard nothing since. I've had my Fire TV for less than a year so I'm not happy about this.

Does anyone know the reason behind this and if there is a fix?