Bit 🐳 Ish on Nostr: Oh speaking of... I've got another node that I can't access. Umbrel won't start ...

Oh speaking of... I've got another node that I can't access. Umbrel won't start because I can't get it to sync. All the channels have been closed except one according to amboss. I know I can recover onchain funds w seed but what to do abt the lightning channel? How do I force it to close so the funds return onchain, it without being able to access the node? Let's assume the channel partner is also mia...?