Hi, @hazelvan
Greetings, and welcome to the Roku Community.
We appreciate you for inquiring for support regarding the issue you have encountered with the Discovery+ Gold Rush content. For this matter, we would advise you to contact Discovery+ support and inquire further about the issue since channel providers on Roku directly manage and maintain their app on the platform. They can resolve any issues within their app and the content they show.
For more information, you can visit discovery+ Help Center
We hope this will be sorted out soon.
Best wishes,
Kash
Takashi O.
Roku Community Moderator