Welcome to Roku Community.
We apologize for the inconvenience you are experiencing with the Crave app on your Roku TV. We understand how frustrating it can be when the services you are paying for are not functioning as expected. We're here to help and assist you further.
Does the issue occur on this specific channel or all channels on your Roku TV? Have you tried to remove the channel and see if it helps? If you haven't tried it yet, you can remove the affected channel and re-install it. To ensure the process is successful, restart your device before adding the channel back in. We would recommend doing this from the Settings menu by navigating to Settings > System > Power (If you do not see a Power submenu, skip to the next step.) > System restart.
For detailed instructions, refer to this Support link: How do I resolve channel playback issues?
Let us know how it goes.