If you're able to play live streams but are seeing an error message when you try to listen to on demand content on the 91福利社 Sounds app, it's likely because you have a VPN enabled on your device.
To regain access to all of the content on 91福利社 Sounds, switch off your VPN.
For more information on why you may be detected as being overseas and therefore unable to play all content on 91福利社 Sounds, have a look here: Why do you think I'm outside the UK?
If you're having any other issues with 91福利社 Sounds on your phone or tablet, the following page should help: Help fixing problems with 91福利社 Sounds on your mobile or tablet