Hi, @Bpxxx.
Welcome to the Roku Community!
We appreciate you reaching us about having an issue accessing your subscription. We're here to provide some steps you can try.
Have you tried to check if there is a sign-in button on your screen? Also, if it’s billed through your Roku account, use the username and password that you created for that account to sign in to the app. If you signed up for a subscription directly through the streaming service, you need to sign in with the username and password that you created for that account.
Furthermore, you may visit this support article on how to sign in to an app on your Roku device
If there's anything else we can do to assist you, please let us know. We're always willing to help.
Thanks,
Reynan
Reynan L.
Roku Community Moderator