Unable run any Netbackup command from a Solaris client

Unable run any Netbackup command from a Solaris client & its working fine for similar clients.

Here is the error:

bash-3.2$ /usr/openv/netbackup/bin/bpclimagelist -U
Error occurred during initialization, check master configuration file

bash-3.2$ /usr/openv/netbackup/bin/bpclntcmd -pn
Error occurred during initialization, check master configuration file

However backups are running and failing intermittently for oracle archive log backup.  

Please help me get this commad executable from client machine.