Installation getting failed with PHP Fatal error: Uncaught exception

Hello,

I am trying to install the Kaltura server in Centos 7 but it is failing with the below error with 500 response in Apache logs.

In insertContent.log


Executing multirequest
service url: [http://localhost]
curl: http://localhost/api_v3/service/multirequest
post: {"format":"3","ignoreNull":true,"clientTag":"php5:24-06-01","apiVersion":"18.18.0","0":{"service":"media","action":"add","entry":{"objectType":"KalturaMediaEntry","mediaType":"1","name":"Normal web quality video (400kbps)","description":"Used to monitor delivery","userId":"template","licenseType":"-1","referenceId":"MEDIA_WEB_QUALITY"},"ks":"ZThhYzM0M2JlMDZmZTUyNzc4YWY5MDY2ODBhNWZkMDk1NGRjOTgxM3wtNDstNDsxNzE3MzY0NTc3OzI7MjA5MTU7Ow=="},"1":{"service":"uploadtoken","action":"add","uploadToken":{"objectType":"KalturaUploadToken","fileName":"NormalWebQualityVideo.flv"},"ks":"ZThhYzM0M2JlMDZmZTUyNzc4YWY5MDY2ODBhNWZkMDk1NGRjOTgxM3wtNDstNDsxNzE3MzY0NTc3OzI7MjA5MTU7Ow=="},"2":{"service":"uploadtoken","action":"add","uploadToken":{"objectType":"KalturaUploadToken","fileName":"NormalWebQualityVideoThumb.jpg"},"ks":"ZThhYzM0M2JlMDZmZTUyNzc4YWY5MDY2ODBhNWZkMDk1NGRjOTgxM3wtNDstNDsxNzE3MzY0NTc3OzI7MjA5MTU7Ow=="},"3":{"service":"thumbasset","action":"add","entryId":"{1:result:id}","thumbAsset":{"objectType":"KalturaThumbAsset"},"ks":"ZThhYzM0M2JlMDZmZTUyNzc4YWY5MDY2ODBhNWZkMDk1NGRjOTgxM3wtNDstNDsxNzE3MzY0NTc3OzI7MjA5MTU7Ow=="},"4":{"service":"uploadtoken","action":"upload","uploadTokenId":"{2:result:id}","resume":false,"finalChunk":true,"resumeAt":"-1","ks":"ZThhYzM0M2JlMDZmZTUyNzc4YWY5MDY2ODBhNWZkMDk1NGRjOTgxM3wtNDstNDsxNzE3MzY0NTc3OzI7MjA5MTU7Ow=="},"5":{"service":"uploadtoken","action":"upload","uploadTokenId":"{3:result:id}","resume":false,"finalChunk":true,"resumeAt":"-1","ks":"ZThhYzM0M2JlMDZmZTUyNzc4YWY5MDY2ODBhNWZkMDk1NGRjOTgxM3wtNDstNDsxNzE3MzY0NTc3OzI7MjA5MTU7Ow=="},"6":{"service":"media","action":"addContent","entryId":"{1:result:id}","resource":{"objectType":"KalturaUploadedFileTokenResource","token":"{2:result:id}"},"ks":"ZThhYzM0M2JlMDZmZTUyNzc4YWY5MDY2ODBhNWZkMDk1NGRjOTgxM3wtNDstNDsxNzE3MzY0NTc3OzI7MjA5MTU7Ow=="},"7":{"service":"thumbasset","action":"setContent","id":"{4:result:id}","contentResource":{"objectType":"KalturaUploadedFileTokenResource","token":"{3:result:id}"},"ks":"ZThhYzM0M2JlMDZmZTUyNzc4YWY5MDY2ODBhNWZkMDk1NGRjOTgxM3wtNDstNDsxNzE3MzY0NTc3OzI7MjA5MTU7Ow=="},"kalsig":"c072e15e56ecfd9ae9cd4d9ffbc45658"}
server: [localhost], session: [1290009853, 1717278177]
result (serialized):
PHP Fatal error:  Uncaught exception 'KalturaClientException' with message 'failed to unserialize server result
' in /opt/kaltura/app/tests/lib/KalturaClientBase.php:405
Stack trace:
#0 /opt/kaltura/app/tests/lib/KalturaClientBase.php(975): KalturaClientBase->doQueue()
#1 /opt/kaltura/app/tests/standAloneClient/exec.php(345): KalturaClientBase->doMultiRequest()
#2 {main}
  thrown in /opt/kaltura/app/tests/lib/KalturaClientBase.php on line 405

In kaltura_apache_access.log

[02/Jun/2024:03:12:57 +0530] "POST /api_v3/service/multirequest HTTP/1.1" 500 607 0/344670 "-" "Stand alone php 1.0.0" "-" ::1 "-" "localhost" 52902 1290009853, 1717278177 - 1912970 "-" "-" "-" "-" "no-store, no-cache, must-revalidate, post-check=0, pre-check=0" -4

Even I tried with manual curl but it was also giving the same 500 response.

Please help!! I just want to get Kaltura running just once so that I can evaluate it.