Hopefully the developer will see this. The plugin is not working because there is an error in line 24 in mobi.php where two different variables are being used instead of one.
$session_check_lite = $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
if(substr_count($session_check, 'main=true')>0){...
You need to change $session_check to $session_check_lite
That should fix the issue.
