Try the "clear the cache" routine:
On your Roku remote, press Home 5 times, Up arrow once, Rewind (<<) twice, and FF (>>) twice. If you do it properly, your Roku device should reboot on its own.
Roku Community Streaming Expert
Help others find this answer and click "Accept as Solution."
If you appreciate my answer, maybe give me a Kudo.
I am not a Roku employee.