External Thread Creation: Registry Object is not an Object error

[TeknoSounds]

Greetings, I'm (still) attempting to create a new thread outside VB, but now I'm getting the following errors (echoes 0 & 1 happen previously in the code):

012
Fatal error: MGCCbEvo_core::Registry object is not an object in [path]/mgc_cb_evo/classes/class_core.php on line 21

As you can see, this is from MGC chatbox. When the chatbox is disabled from the ACP, I then get the following error:

0123
Fatal error: Registry object is not an object in [path]/includes/class_dm.php on line 205

I can't seem to figure out why its not able to create the registry object for either MGC or the datamanager. Code below.

PHP Code:

    //Create New VB Thread from Event Info
    public function CreateNewVBThread($date, $name, $venue, $city, $state) {
        //Variables
        echo 2;
        $postip = "127.0.0.1";
        $userid = 243;
        $username = 'Events Announcer';
        $title = ($date . ' - ' . $name . ' @ ' . $venue . ' - ' . $city . ', ' . $state);
        $threadinfo = array();
        $forumdir = "/myforumdirectory";
        $specialtemplates = array();
        $actiontemplates = array();
        $globaltemplates = array();

        chdir($forumdir);

        require($forumdir . '/global.php');
        require($forumdir . '/includes/functions_databuild.php');

        //Determine City/Forum
        if ($state = "TX") {
            switch ($city) {
                case "Austin":
                    $forumid = 70;
                    break;
                case "Dallas":
                    $forumid = 77;
                    break;
                case "Houston":
                    $forumid = 78;
                    break;
                case "San Antonio":
                    $forumid = 79;
                    break;
                default:
                    $forumid = 80;
                    break;
            }
        }
        else {
            $forumid = 81;
        }
        echo 3;
        //Create new thread given info below
        $threaddm =& datamanager_init('Thread_FirstPost', $vbulletin, ERRTYPE_ARRAY, 'threadpost');

        $foruminfo = fetch_foruminfo($forumid);
        $threaddm->set_info('forum', $foruminfo);
        $threaddm->set_info('thread', $threadinfo);
        $threaddm->setr('forumid', $forumid);
        $threaddm->setr('userid', $userid);
        $threaddm->setr('title', $title);
        $threaddm->set('username', $username);
        $threaddm->set('pagetext', 'This is a test');
        $threaddm->set('allowsmilie', 1);
        $threaddm->set('visible', 1);
        $threaddm->set('ipaddress', $postip);
        $threaddm->set('dateline', TIMENOW);
                
        $threaddm->pre_save();
        if(count($threaddm->errors) < 1)
        {
            $threadid = $threaddm->save();
            unset($threaddm);
            build_thread_counters($threadid);
        }
        else 
        {
            print "Error making new thread! " . $threaddm->errors[0] . $threaddm->errors[1] . $threaddm->errors[2] ;
        }
        
        build_forum_counters($forumid);

    }  //end CreateNewVBThread() */ 


The file does live in a folder outside of vb currently, though plans are to remove this section and place it in its own file in the vb folder later.