With your style of asking questions it's like:
you: i need help
me: with what?
you: with the plugin
me: with wich plugin?
you: background mode
me: what did you try?
you: the code enable();
me: where did you run this command?
you: in the app
me: where in the app?
...100 more questions.....
Like this it will take forever and you waste the time of people who wants to help you.
and that is why you don't get an answer.