[MrZeropage]

Maybe this helps (untested):

open /arcade/modules/mod_arcade.php

Search for:

        if( $this->user['ppd_require'] )
        {
        	$posts_today_time = mktime(0,0,0,date("m"),date("d"),date("Y"));

replace with

        if( $this->user['ppd_require'] )
        {
        	$posts_today_time = mktime(0,0,0,date("m"),date("d")-1,date("Y"));