No Error Handling for Invalid Links

[bacloud22]

Issue: If a user clicks an invalid or expired channel link, there is no error handling, and the page might just break or show nothing.

Improvement: Add graceful error handling and a friendly error message when users try to access invalid or expired channels.

[namansharma3007]

@bacloud23 I can handle this issue. Please assign it to me.

[arun0452]

Assign this issue to me, I will come up with PR

[bacloud22]

it's yours @namansharma3007