I Beast,
You wrote:
i cleaned up unnsed domains in /etc/dehydrated/certs/
Then you said:
i edit with nano -w config and my domains.txt with my old values.
You should clean domains.txt of all unused domains, not /etc/dehydrated/certs/. Make sure domains.txt is only one line.
I think that the first domain in domains.txt should be the one in Primary i-bay (not sure of that)
If I remember right, /etc/dehydrated/certs/ contains a folder with the name of the first domain in domains.txt. This folder contains all the requests, certs and chains.
Also, maybe save accounts keys somewhere and delete everything in accounts directory.
Then
/etc/dehydrated/dehydrated --register --accept-terms
And then
/etc/dehydrated/dehydrated -c
or to force the renewal if still valid.
/etc/dehydrated/dehydrated -c --force
Michel-André