My book live - Backup drive can't be access on Mac

I just don’t know how to access to “My book live - Backup”  on my iMac. It’s always say disconnected. Can I remove it or can I rename it? 

Try connecting as a samba share,335/session/L3RpbWUvMTM1MDA3NjYyMy9zaWQvYVZSUTl6OGw%3D

can i erase that drive? It’s just there with no reson.