Hi @windyGiant,
Your renewal has succeeded more than once a day recently:
https://crt.sh/?Identity=%mort11.org&iCAID=16418
One problem that you may be encountering is that you apparently have several different overlapping certificates managed by Certbot. You can find out about these certificates by running certbot certificates.
However, it also looks like you’ve been tampering with the file structure in /etc/letsencrypt/live by moving or renaming things. Do you have a recollection of having done that? This may have broken some of your certificate lineages so that Certbot is no longer able to renew them.