Hey Ruth! From which device are you having this problem? Do you receive an error message? 

Do you have a Deezer subscription? 

Hi Yula,

Yes I have a subscription, its on my Apple laptop which is connected to my ampli. I dont think the problem is in the computer as this doesnt happen when I eg watch TV through it.

thanks

There is a setting that disconnects you once you leave the app after a certain amount of time.check if its enabled on your device

This is happening to me on my google nest, how do I stopped it?

How is Deezer connected to your google nest? Do you start playing content via casting, voice control or cable connection with a mobile device?

I usually get on with voice commands. This is when I see the most problems with it turning off.  I've been trying to figure out if it's after a certain song on my playlist or time frame and I haven't been able to find a pattern. Then I started playing via casting and it seems to be even more finicky. 

@donihunt 

If using voice control the stream directly goes to the speaker, also if casting. 
So imho it could be a problem of your network connection that is dropping the signal or of your google nest device. For casting you can try to set a lower stream quality in Deezer apps audio setting.