Apache could not be started because of mod_ssl

Everything was working well. But maybe a week ago, our system administrator was installing some stuff on all the machines for internal needs. After that my Apache web server hasn’t been started. Today, I needed to test something with PHP and I needed Apache for that. So, I started to investigate.

Here’s what Apache said:

Apache 2 is starting …

(OS 10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. : AH00072: make_sock: could not bind to address [::]:4433.

(OS 10048) Only one usage of each socket address (protocol/network address/port) is normally permitted. : AH00072: make_sock: could not bind to address 0.0.0.0:4433.

AH00451: no listening sockets available, shutting down

AH00015: Unable to open logs

Apache could not be started

I’ve tryed to change a port number, but nothing changed. BTW, I don’t need SSL for my work, so I just tryed to comment this module in httpd.conf:

#LoadModule ssl_module modules/mod_ssl.so

After commenting mod_ssl.so Apache starts without any errors. So, it’s a workaround. But I still don’t know what’s the true problem.