Reply To: Jetpack Infinite Scroll

Paste the the following code in the end of functions.php after all code

function iop_infinite_scroll_init() {
    add_theme_support( 'infinite-scroll', array(
	'type'  => 'scroll',
        'container' => 'content',
    ) );
}
add_action( 'after_setup_theme', 'iop_infinite_scroll_init' );

After this just make sure that the infinite scroll module in Jetpack is active.