apache [warn] module ssl_module is already loaded, skipping (Solved)

This happens, because ssl module is enabled in more than 1 place:

we load all needed modules in one place – /etc/httpd/conf/httpd.conf.
So we can safely comment out in /etc/httpd/conf.d/ssl.conf file.

edit /etc/httpd/conf.d/ssl.conf file
and comment out this line:

save file, and problem fixed: