What's log file?.
This one:
tail -f /var/log/httpd/error_log
[Wed Jul 08 13:09:18.842910 2015] [core:notice] [pid 22635:tid 139986245371872] AH00094: Command line: '/usr/sbin/httpd'
(process:22834): Pango-WARNING **: Invalid UTF-8 string passed to pango_layout_set_text()
(process:22834): Pango-WARNING **: Invalid UTF-8 string passed to pango_layout_set_text()
(process:22834): Pango-WARNING **: Invalid UTF-8 string passed to pango_layout_set_text()
(process:22897): Pango-WARNING **: Invalid UTF-8 string passed to pango_layout_set_text()
[Wed Jul 08 13:50:56.568351 2015] [proxy_fcgi:error] [pid 24725:tid 139985707558656] [client 89.146.221.18:41803] AH01071: Got error 'Primary script unknown\n'