PGP Command Line 9.9 build 110

I have included the PGP encrypt command in a shell script file(TestFileRun.sh).However when I try to schedule the above shell script using the command:

$crontab -e

The shell script is not able to execute the PGP command only.Rest other portions are executing good.The PGP file is not getting generated while executing in scheduled job.

However, The shell script is running(Generates the PGP file) when executed manually using the command:
$ ./TestFileRun.sh

FYI,
The crontab is under the user : root
The Symantec is licensed to a different user other than root.

I am using the Symantec PGP Command Line 9.9 build 110 in my UNIX machine.How to use PGP encryption and schedule a job automatically using crontab in UNIX machine????Kindly HELP.