To run Autotune, you need to fill out your Facebook App ID, Secret Key and your SourceCoast Subscriber Id. Those values are required for Autotune to run properly.
I hope that explains, but if you need anything else, just let me know.
Kindly check the screen it says something should be a null array in scconfig.php...even if i enter all thosa facebook and sourcecoast id i still get these error and am unable to move on with nxt step
The warnings you are seeing are indicating that the #__jfbconnect_config table doesn't exist or is corrupted. Can you check to make sure that the #__jfbconnect_config and #__jfbconnect_user_map tables exist in your database? There's a lot of other tables JFBConnect uses, but those are the main required ones.