Warmest welcome here in the Roku Community, @iny.
It is appreciated that you've reached out for support regarding the accessibility of the Nino's Corner app using your credentials. No worries; we'd be glad to be of assistance.
For channel authentication, please be aware that the channel providers themselves should be made aware of this as they are the ones who provided, maintained, and updated their app on the Roku streaming platform. They have access to your account so it's better to directly raise your concern to them.
Here is where you can reach them: Nino'c Corner customer support.
We hope you get everything sorted out soon and appreciate you bearing with us in the meantime.
Best regards,
Carly
Carly Y.
Roku Community Moderator