I have a nodejs/express api on a AWS EC2 server with a ssl certificate that is generated with Let's encrypt every 3 months. Auto renewal isn't on and we let it exipre before trying to renew but after renewing it we are getting an error saying:
Unable to verify the first certificate
or
UNABLE_TO_VERIFY_LEAF_SIGNATURE
depending on what we are testing with.
We are using Certbot for renewing with the following command (and not $ certbot renew) :
$ sudo certbot certonly --dns-route53 -d *.example.com -d example.com --server https://acme-v02.api.letsencrypt.org/directory
Certificates are generated as expected with an expiration date 3 months from now.
Any ideas on what's going on ? I've tried most of the things I could find on SO and elsewhere but nothing worked.
P.S. Servers and I don't go along very well :/ (I do app mobile dev) so assume that I don't know anything when replying :D