Hi @Babyjen,
Greetings from the Roku Community!
We suggest that you contact Onn Roku TV support to report the issue and get help. In this case, there's likely an issue with that specific TV that needs to be addressed with an update from them.
Please let us know if there is anything else we can do to help you.
Kind regards,
The Roku Community Team
John
Roku Community Moderator