I tried to update the certificates and got this...
sudo site -ssl=force-renewal-all
Saving debug log to /var/log/letsencrypt/letsencrypt.log
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Processing /etc/letsencrypt/renewal/horseboxheaven.uk.conf
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Could not choose appropriate plugin: The manual plugin is not working; there may be problems with your existing configuration.
The error was: PluginError('An authentication script must be provided with --manual-auth-hook when using the manual plugin non-interactively.')
Attempting to renew cert (horseboxheaven.uk) from /etc/letsencrypt/renewal/horseboxheaven.uk.conf produced an unexpected error: The manual plugin is not working; there may be problems with your existing configuration.
The error was: PluginError('An authentication script must be provided with --manual-auth-hook when using the manual plugin non-interactively.'). Skipping.
All renewal attempts failed. The following certs could not be renewed:
/etc/letsencrypt/live/horseboxheaven.uk/fullchain.pem (failure)
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All renewal attempts failed. The following certs could not be renewed:
/etc/letsencrypt/live/horseboxheaven.uk/fullchain.pem (failure)
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1 renew failure(s), 0 parse failure(s)