SSL renewal error (again)

All my domains have renewed aside from the main one I use for work email!

I’m getting this error…

Saving debug log to /var/log/letsencrypt/letsencrypt.log Requesting a certificate for gideon-it.co.uk and 4 more domains An unexpected error occurred: acme.errors.ClientError: <Response [405]> Ask for help or search for solutions at https://community.letsencrypt.org. See the logfile /var/log/letsencrypt/letsencrypt.log or re-run Certbot with -v for more details.

I’ve tried adding the following custom DNS entries to fix it but no joy so far…

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The certificates expire in 5 days!