My memory RAM:
total used free shared buff/cache available
Mem: 991 336 161 241 493 270
Swap: 0 0 0

httpd -t -DDUMP_VHOSTS
VirtualHost configuration:
*:443 videos.darumasoftware.com (/etc/httpd/conf.d/ssl.conf:56)
*:80 videos.darumasoftware.com (/etc/httpd/conf.d/zzzkaltura.conf:1)

kaltura-config-front.sh not exist, but there kaltura-front-config.sh and run it again, it shows:

base-config completed successfully, if you ever want to re-configure your system (e.g. DB hostname change) run the following script:

Rm /opt/kaltura/app/base-config.lock

/opt/kaltura/bin/kaltura-base-config.sh

Kaltura-front-11.19.0-1.noarch

It is recommended that you 'do work using HTTPs. Would you like to continue anyway? [N / y]
Y
Which port will listen on Vhost esta? [80]

Please select one of the following options [0]:
0. All web interfaces
1. Kaltura Management Console [KMC], Hosted Apps, HTML5 lib and ClipApp
2. KAC - Kaltura Admin Console
0
Enabling Apache config - apps.conf
Enabling Apache config - var.conf
Enabling Apache config - admin.conf

========================================================================================================================
Kaltura install file written answer to /tmp/kaltura_27_07_09_14.ans - Please save it!
This file can be used answers to silently re-install-install esta machine or deploy other hosts in your cluster.
========================================================================================================================

Redirecting to / bin / systemctl restart httpd.service
Note: Forwarding request to 'systemctl enable httpd.service'.
Note: Forwarding request to 'systemctl enable memcached.service'.
Redirecting to / bin / systemctl restart memcached.service
Restarting Kaltura-monit (via systemctl): [OK]

It is possible that the incident is by memory , but I've done before one isntalación with 1 GB of RAM. However subire RAM, which are the minimum requirements for Kaltura ?