After installing SSL, apache stopped working

Stopping httpd: [FAILED]
Starting httpd: [Mon Sep 19 17:49:23 2016] [warn] NameVirtualHost 192.168.0.4:443 has no VirtualHosts
(98)Address already in use: make_sock: could not bind to address [::]:443
[  OK  ]

How can I fix it?

Http won't start after installing paid SSL. No error msg just Starting httpd: [FAILED].

This SSL was installed and working until I tried Letsencrypt Manager. That installed a cert, but it didn't work correctly so I removed it. Letsencrypt Manager won't install again getting error "Initialized empty Git repository in /opt/cwp_letsencrypt/.git/".

I finally got paid SSL to install but NO Http.

Got http going. I had to completely clean out all the old SSL files in /etc/pki/tls/certs/. Made sure /usr/local/apache/conf.d/vhosts-ssl.conf was empty. Then I could start over with the install.
I generated a new SSL, but did not check the box to install. Used the CSR, and Key files with the paid Cert.
Working good again. Only problem is now it has a F rating.
That has something to do with the config because another Server with a SSL from the same signer has an A rating.