A private, inaccessible, IANA/IETF-reserved IP address was found for home.chewie.co.uk. Let's Encrypt will always fail HTTP validation for any domain that is pointing to an address that is not routable on the internet. You should either remove this address and replace it with a public one or use the DNS validation method instead.
100.77.138.223
A and AAAA records found for this domain
home.chewie.co.uk. 0 IN A 100.77.138.223
The IANA public suffix is the TLD of the Registered Domain
The TLD for home.chewie.co.uk is: co.uk
1 Certificates contributing to rate limits for this domain
Serial: 360627839381316033774237563656867674628089
NotBefore: 2022-04-17 20:30:51 +0000 UTC
Names: [chewie.co.uk www.chewie.co.uk]
The current status.io status for Let's Encrypt
Operational