Enabling RBS on more than content database (Different site collection)

I am Kamaro and this is my first question,so i hope you could help me :) I am trying to enable RBS on different content database but first the RBS that i installed was installed by wizards no using cmd as mentioned in the msdn article about installing and configuring RBS. when i ran it from the cmd the log file contain error about the master key "raiserror(N'Remote Blob Storage requires a master key to exist in this database. Please create a master key and retry the install". So i thought it is a permission error for the user how ran the cmd and i added it to the DBOwner but the same problem appear. the main issue is that i am not able to configure the RBS or enable it in other word for another content database.