Thank you for the offer, but I have to gently decline a meets-session.
Don’t give up, your situation is not straight forward and wouldn’t be solved by the guide apparently. Bit of an edge case. If you have Telegram, you can hook me up there, chat is fine with me.
But before, let’s get some context: Do you have any open channels remaining, or is that the only channel and you’re missing the onchain sats? If so, here is one who had the same issue.
And what happened before, did you initiate an umbrel rescue / restore? I’m not super familiar with umbrel restore, but I would assume that you initiate an SCB / umbrel restore, the channel got closed / lost the status, you already have the sats onchain, but your umbrel wallet doesn’t know about it. A rescan might help, but let’s take it step by step.