Hello,
First issue seems to be a failure to stop and restart Apache.
Start by checking why.
First, kill all current httpd procs with:
# killall -9 httpd
then try to start it:
# service httpd start
then:
# service httpd status
if still not running, check the log to see why, relevant logs /var/log/httpd/error_log and /opt/kaltura/log/kaltura_apache_errors.log
I am also seeing a lot of "Permission denied" which should never happen if you're running this as root, did you perhaps run it with a none privileged user?