When you try watch roku channel on your TV it does not work but it works on my phone what is the problem I never had that problem before always watch roku on my tv.
You didnt mention your Roku model # or firmware version (Settings/System/About) or TRC app version (highlight the app and press Options (*) on the remote).
You havent mentioned any specific error message or specific behavior - we need more information.
Try restarting your Roku: Settings/System/System restart/Restart
or Roku TV: Settings/System/Power/System restart/Restart
If @StreamerUser 's suggestions don't work for you ...
When problems are confined to a particular channel, it may be that the channel didn't install properly, that it didn't update correctly, or that the installation has otherwise gotten corrupted. A reinstall may fix the problem, so give it a try.
Remove/reinstall procedure: