NBAC Installation in Netbackup 7.1

Dear All , 

   I had a master server and client of version 7.0 and when I wanted to install the NBAC as when I wanted to go to the section NBAC it says error code 193 then  I found that it's installed automatically on 7.1 so I upgraded the master server to 7.1 and the clients is still on the version 7.0

the thing that now I can see NBAC still giving me the error code 193 so is that because the clients still on the version 7.0 or there is a way of installing and configuring the NBAC ?

Thanks in advance