I restarted the tv twice and deleted all my channels and still getting this message. How do I fix this?
I only recommend it as a last resort, but it's probably time to try a factory reset.
How to factory reset your Roku® streaming device | Official Roku Support
That can be a symptom of a corrupted memory cache. This can normally be cleared by restarting the Roku.
Note that if you have a Roku TV configured to use the Settings > System > Power > Fast TV Start option, turning the set off and back on just puts you into and out of a low power standby condition and doesn't give you a complete cache-clearing restart.
Try restarting via Settings > System > Power > System restart, or just pull the power plug out for a few seconds and plug back in.