Something's not right. Give it a moment, or check nowtv.com/status for updates. If the error persists please try logging out and back into the app to continue watching (Error code CVF:-1004:-1004)
Have you tried signing out of the NOW App, then do a full power down on the smartphone for say 5 minutes, then restart the phone and sign back into the App.
Sounds like there is something blocking the NOW App from your Vodafone Router (especially if you have other NOW playback devices with the same issue).
Might be a dodgy IP address on the Router which NOW see has unknown location or outside the UK.
Perhaps try powering down the Router for around 20 minutes to allow it to acquire a new IP address automatically or perhaps there is some sort of adware software blocking the NOW App.
Is your phone otherwise connecting OK to your Vodafone Hub? You may want to reach out to them for further help. Also, as @schnapps suggested, is NOW TV working on other devices, assuming you have more than a Sports mobile membership?
