Cert not expired but getting ERR_CERT_DATE_INVALID

Help
1

My domain is: nordy.com.br

The operating system my web server runs on is (include version):
NAME="Ubuntu"
VERSION="18.04.5 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04.5 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="Data privacy | Ubuntu"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic

I can login to a root shell on my machine (yes or no, or I don't know): Yes

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot): certbot 0.27.0

I´m getting the error: Failed to load resource: net::ERR_CERT_DATE_INVALID

2

It looks fine right now. Maybe there was a caching issue on your browser.

3

That can also happen when your system clock is very far off from the actual true time.
But likely just an old cert was being cached somewhere.