Hello Pankaj,
Welcome to the Community! You may need to look at the GCBA log files to see what is causing the screen recording to not work. You can find the GCBA log file in C:\Program Files (x86)\Genesys\GenesysCloudBackgroundAssistant\logs\background-assistant.log.
I would also recommend taking a look at this Resource Center Article for more information:
https://help.mypurecloud.com/articles/deploy-genesys-cloud-background-assistant-gcba/
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Jason Kleitz
Online Community Manager/Moderator
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