Cert err_cert_date_invalid

Hi Im getting this error in the crome : Failed to load resource: net::ERR_CERT_DATE_INVALID
It was working for months but today has expired the cert, and not refreshed.

My configuration is ok:
“lets_encrypt”: {
“accept_terms”: true,
“certfile”: “fullchain.pem”,
“keyfile”: “privkey.pem”
“token”: “my token”,
“domains”: [
“seconds”: 300

INFO: Using main config file /data/workdir/config

  • Account already registered!
    Tue Oct 16 18:09:45 CEST 2018: OK


INFO: Using main config file /data/workdir/config

Processing link.duckdns.org

  • Checking domain name(s) of existing cert… unchanged.
  • Checking expire date of existing cert…
  • Valid till Dec 15 18:59:42 2018 GMT (Longer than 30 days). Skipping renew!
    Tue Oct 16 18:14:48 CEST 2018: OK

In the log it seems that ok the cert, but whenI try to login I can not.
THe cert diles in the ssl dir has not changed on my rasbery pi.
Can you help what could be the problem ?
From where can I copy the new cert files ?
I have olny 443 port open.

This error message from Google Chrome Browser is one of the most common problems that everyone faces in our day to day life. Google Chrome warns you whenever it finds out any abnormal tracks taken while you browse things on the web. If you are getting the SSL error in chrome, it means your Internet connection or your computer is preventing Chrome from loading the page securely and privately. However, there are few changes or settings which help you to get rid you of this error.

Check System Date and Time
Disable Antivirus SSL Connection
Clear Cookies and Cached Files
Reset Chrome Browser
Open Chrome in Incognito Mode
Expired SSL Certificates
Update Chrome Browser