Thanks for posting here in the Community!
Could you tell us the model of the affected Roku device? If it's a Roku TV, we would recommend reaching out to the TV manufacturer to report the issue and for further help. Each Roku TV manufacturer provides direct support and warranty services for their products running the Roku OS.
For a list of Roku TV manufacturers contact information, visit our Community post here: Contacting Support for Your Roku TV
All the best,
Roku Forum Moderator