thanks CGrenier for the answer,
unfortunately the volume still can't be unlocked, probably the header is corrupted.
After rebooting, the quick search looks like this:
Hi all, I have an external disk encrypted with LUKS that got corrupted, I think it's a filesystem problem but I'm not sure. Unfortunately the header backup was lost and I can't figure out how the problem occurred. I've read other posts from this forum that said to add a new partition of LUKS, but I ...