WordPress cURL error 60: SSL certificate problem

You are receiving a PHP Fatal error of an "uncaught exception" in Guzzle with an error code of "cURL error 60"

WordPress Plugin users only: The following instructions are for customers who are using Constant Contact Forms for WordPress on their WordPress site. This plugin lets visitors to your WordPress site join your mailing list through a form that is synced to your Constant Contact account.

Error details:

"cURL error 60" relates to the following: CURLE_SSL_CACERT (60) Peer certificate cannot be authenticated with known CA certificates.

Solution:

Amend the location of your certificate file to match your own setup:

1. Download "cacert.pem" from here: http://curl.haxx.se/docs/caextract.html.
2. Save the cacert.pem file anywhere on your system.
   Example: Since you're modifying both php.ini, and telling PHP where to look for this file on a Windows server, save the cacert.pem in "C:\PHP\Extras\SSL".
3. Open your php.ini file. If your php.ini file doesn't have the curl.cainfo line, just add it to the end of the file, then add the file path where you saved your cacert.pem file:
   
   Change:

   ; curl.cainfo = 
   

   To:

   curl.cainfo = "C:\PHP\Extras\SSL\cacert.pem";

4. Restart your server.

If you continue to experience an issue after trying the steps above, please visit our Constant Contact Forms Plugin Support Forum.

Any links we provide from non-Constant Contact sites or information about non-Constant Contact products or services are provided as a courtesy and should not be construed as an endorsement by Constant Contact.

Questions?