desktop+ not saving term/shell buffer

[mm5m]

I was happy with inbuilt desktop but it could not retain the term/shell buffers. Everytime I quit emacs, it asks to kill the term/shells. Then I read the ability of desktop+ to retain the term/shell and installed it M-x package-install after going through the github doc.
I have removed the line desktop-save-mode from init file.

I have 2 questions-

1. In new emacs session (having shell windows), I saved the session with desktop+create, verified its existence on the disk, but when quitting emacs, in minibuffer, I still get the same message as with desktop (to kill the running processes i.e. the term/shell buffers).
   How can I retain the session shell windows as mentioned in the doc?

2. Another question is that I need to desktop+load after opening emacs to load the session even of the default dir. What can I add in the init file to load the default session and not a blank emacs. I tried desktop+-save-mode 1 as mentioned in the github page but this gives as error in the init file.
   Even puttting (require 'desktop+) does not load the saved session.