[Wed Jun 19 03:51:17 2019] [warn] [client xx.x.xx.xxx] mod_fcgid: stderr: PHP Fatal error:  Uncaught exception 'Exception' with message 'cURL error: [77] Problem with the SSL CA cert (path? access rights?)' in /var/www/vhosts/xxxxxx.com/httpdocs/PaypalIPN.php:114
[Wed Jun 19 03:51:17 2019] [warn] [client xx.x.xx.xxx] mod_fcgid: stderr: Stack trace:

# yum reinstall openssl
Installed:
  openssl.x86_64 0:1.0.1e-57.el6

 Complete!

# yum reinstall ca-certificates
Installed:
  ca-certificates.noarch 0:2018.2.22-65.1.el6

Complete!

[root@server-xxxxxxx-x ~]# service nginx restart
Starting nginx:                                              [  OK  ]
[root@server-xxxxxxx-x ~]# service httpd restart
Stopping httpd:                                            [  OK  ]
Starting httpd:                                            [  OK  ]
[root@server-xxxxxxx-x ~]# service php-fpm restart
Stopping php-fpm:                                             [  OK  ]
Starting php-fpm:                                          [  OK  ]