PHP Fatal error: Uncaught exception 'KalturaClientException' with message 'Issuer certificate is invalid.'

Hello,
I am somewhat new to cent-OS 7 but am getting the hang of things! I am following the guide here for the SSL install: https://kaltura-install-packages.readthedocs.io/en/stable/install-kaltura-redhat-based/
I am also using Let’s encrypt to generate the cert. I have created a VMWare snapshot after getting non-SSL kaltura to run, so I can always revert back there for testing.

After installing let’s encrypt and re-running kaltura-config-all.sh I find this error message about the cert being invalid. Trying to access https://kaltura.*****.org/start/index.php in a browser gives me a 404 error.

Please let me know what I can do to further troubleshoot this issue, I can always revert to my non-SSL build and restart the SSL config if needed. Many thanks for any help you can spare!!

The kaltlog shows:
2020-12-30 11:58:37 [0.000338] [362106615] [9] [BATCH] [KScheduleHelper->run] ERR: exception ‘Exception’ with message ‘System is not yet ready - ping failed’ in /opt/kaltura/app/infra/log/KalturaLog.php:88
Stack trace:
#0 /opt/kaltura/app/batch/batches/KScheduleHelper.class.php(42): KalturaLog::err(‘System is not y…’)

’ in /opt/kaltura/app/batch/client/KalturaClientBase.php:401
Stack trace:
#0 /opt/kaltura/app/batch/client/KalturaClient.php(1399): KalturaClientBase->doQueue()

==> /opt/kaltura/log/batch/synchronizedistribution-0-2020-12-30.err.log <==
PHP Fatal error: Uncaught exception ‘KalturaClientException’ with message ‘Issuer certificate is invalid.’ in /opt/kaltura/app/batch/client/KalturaClientBase.php:362
Stack trace:
#0 /opt/kaltura/app/batch/client/KalturaPlugins/KalturaContentDistributionClientPlugin.php(2815): KalturaClientBase->doQueue()

’ in /opt/kaltura/app/batch/client/KalturaClientBase.php:401
Stack trace:
#0 /opt/kaltura/app/batch/client/KalturaClient.php(2360): KalturaClientBase->doQueue()

==> /opt/kaltura/log/batch/clearcuepoints-0-2020-12-30.err.log <==
PHP Fatal error: Uncaught exception ‘KalturaClientException’ with message 'failed to unserialize server result

’ in /opt/kaltura/app/batch/client/KalturaClientBase.php:401
Stack trace:
#0 /opt/kaltura/app/batch/client/KalturaClient.php(4608): KalturaClientBase->doQueue()

And here is my answer file:
TIME_ZONE=“America/New_York”
KALTURA_FULL_VIRTUAL_HOST_NAME=“kaltura..org"
KALTURA_VIRTUAL_HOST_NAME="kaltura.
.org”
DB1_HOST=“127.0.0.1”
DB1_PORT=“3306”
DB1_PASS=“"
DB1_NAME=“kaltura”
DB1_USER=“kaltura”
SERVICE_URL="http://kaltura.
.org”
SPHINX_SERVER1=“127.0.0.1”
SPHINX_SERVER2=“127.0.0.1”
DWH_HOST=“127.0.0.1”
DWH_PORT=“3306”
ADMIN_CONSOLE_ADMIN_MAIL=“"
ADMIN_CONSOLE_PASSWORD="

CDN_HOST=“kaltura..org"
KALTURA_VIRTUAL_HOST_PORT=“80”
SUPER_USER="

SUPER_USER_PASSWD=“"
ENVIRONMENT_NAME=“Kaltura Video Platform”
DWH_PASS="

PROTOCOL=“http”
PRIMARY_MEDIA_SERVER_HOST=“kaltura..org"
USER_CONSENT=“0”
VOD_PACKAGER_HOST="kaltura.
.org”
VOD_PACKAGER_PORT=“88”
IP_RANGE=“0.0.0.0-255.255.255.255”
WWW_HOST=“kaltura..org"
IS_SSL=“Y”
CRT_FILE="/etc/letsencrypt/live/kaltura.
.org/cert.pem”
KEY_FILE="/etc/letsencrypt/live/kaltura..org/privkey.pem"
CHAIN_FILE="/etc/letsencrypt/live/kaltura.
.org/fullchain.pem"