Load Runner VuGen 12.60 - script failing due to unauthorised access - Oracle NCA


Oracle Apps admin created few scripts for Login and navigation.

The same login scripts are successfully running for the person who made it and when I am trying to execute it is failing, the credentials to login to the oracle apps is constant (admins creds).

The script owner had sent me the script file as a Zip created by VuGen. I have imported the same script into VuGen in my machine. When i executed the script, it is failing with Http 401 - Unauthorized access error.

When I recorded and replayed the same steps the script is again successfully running.

what other parameters I might be missing to add or conf files should I have so that I can run other's script 
I hope this question is clear. Please let me know if you are looking for any additional information.