Help & troubleshooting for channels on your Roku device, including adding/removing channels, logging in to, authenticating, or activating a channel, channel-specific playback issues, assistance contacting channel publishers to report issues, and adjusting channel-specific settings.
What model Roku's (model numbers on bottom of device)? Some older models are losing support from some channels.
Also, if you delete an app on one Roku, it will usually delete from all the others if they are using the same linked account.
You may want to consider changing the password for your Roku account if none of the above seems to apply. If you paid an 'activation' fee to set up any Roku and gave your account details, the scammers may be messing with your account.