A warm welcome here in the Roku Community, @Helpineedhelp!
Worry no more, as we are here to find you the best resolution possible.
May we first know if this happens the time you open your TV, or is it whenever you're trying to open an app? Furthermore, if you are unable to navigate your Home screen, we highly recommend unplugging your TV for about 60 seconds and then re-plugging it to see if it will resolve the issue you've been having.
Let us know how it goes!
Best regards,
Carly
Carly Y.
Roku Community Moderator