A black screen with sound (or no sound at all) usually points to a playback or compatibility setting rather than your subscription itself.
Try a different channel
If one specific channel is black but others play fine, the issue is likely on that channel’s source rather than your setup.
Check playback / video settings in the app
Some players let you switch decoding methods (hardware vs software) or output resolution — toggling this setting resolves many black-screen issues.
Check your device’s output resolution
If your TV or device is set to output a resolution or HDR mode the stream doesn’t support, try switching to a standard setting like 1080p.
Reinstall the app
If the issue persists across every channel, uninstalling and reinstalling the player app resolves many corrupted-cache issues.