Error: No information found to solve challenge for identifier

I have some domains (my customers domains) that point to my servers but Caddy return them that message:
no information found to solve challenge for identifier: www . customerDoamin . com
and also:
looking up info for HTTP challenge

Does anyone know why it’s happening?

Thanks

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Seconding Francis, we’d need more information.

Broadly speaking, that message means that Caddy received an ACME challenge request for a domain it didn’t initiate the ACME challenge for.

It looks like a lot of domains stuck inside the locks folder for a long time and not been removed from there.
I tried to clean it but it’s very slow:
“rm -f /mnt/efs/caddy_data/locks/*”

What else I can do?

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