None of the selected databases has a replica on the server
What happened
While in an application, you chose File > Replication > Replicate, selected Replicate with options, and selected a server that doesn't contain a replica of the application.
What you can do
Choose File > Open > Notes® Application (Notes Basic client users: File > Application > Open) and browse various servers to find the server containing the application you want to replicate, or ask your administrator where the application is.