How to do the Netvault Backup 12.4 to install Dell ML3 Library

I have a Netvault server version 12.4, it is working with a several devices installed with a several TL200 and TL4000. I installed a new server with new device, a Dell ML3 Library with a two drivers, so when I try installing this new device the Netvault doesn't find any library on the client who I configured the ML3 library.

Someone could help me with this issue?