Error in log: Failed to fetch station: Invalid station ID

[Fofer]

Over the past few days I'm seeing hundreds of identical errors in my log that say:

Error in log: [ERR] Failed to fetch station 53213: Invalid station ID: 53213

No other similar errors are appearing, it's just station 53213 is identified as invalid.

How do I resolve that? I don't know what station 53213 is, but if it's not working and just producing errors in the log, I'd rather just remove it or the source it's coming from. But I don't know what station 53213 is, or why CDVR is constantly trying to fetch it.

[mjitkop]

Wild guess: this station ID is most likely present in one of your custom channel playlists.

[Fofer]

Hmm, yeah, first thing I did was search in all of them, for 53213, but didn’t find a hit. I’ll try again soon.

[chDVRuser]

Maybe if you put the error line in context you'll see what Channels DVR was doing when the error occurs.
Trying to fetch guide data for what.