PHP通知，magmi禁用器的索引未定义

我已经设置了magmi与项目禁用器。我得到PHP通知:未定义的索引:ITEM_SID在/home/mywebsite/www/public_html/magmi/plugins/extra/itemprocessors/itemdisabler/magmi_itemdisabler_plugin.php第65行

这是项目禁用器的代码

<?php class Magmi_ItemdisablerPlugin extends Magmi_GeneralImportPlugin {

protected $_dcols=array();  
protected $magentoSortableAttributes = array(); 

public function getPluginInfo()
{
    return array("name"=>"Magmi Magento Item Disabler",
                         "author"=>"RIS",
                         "version"=>"1.0.0");
}      
public function afterImport()
{
    $this->log("Running Item Disabler Plugin","info");
    $this->disableItems();
    return true;
}
public function getPluginParams($params)
{
    return array();
}
public function isRunnable()
{
    return array(true,"");
}
public function initialize($params)
{
}
public function disableItems()
{       
    $this->datasource = $this->getDataSource();
    $nitems=$this->lookup();

    if($nitems>0)
    {
        $datasource_item_sids = array();    
        $this->resetSkuStats();
        //intialize store id cache
        $this->callPlugins("datasources,itemprocessors","startImport");
        //initializing item processors
        $cols=$this->datasource->getColumnNames();
        $this->log(count($cols),"columns");
        //$this->callPlugins("itemprocessors","processColumnList",$cols);

        //Pack the datasource sids into an array
        $i = 0;
        while(($item=$this->datasource->getNextRecord())!==false && $i++ <= $nitems)
        {   
            if (isset($item['STYLE_SID']) && $this->isConfigurable($item['ATTR']))
            {
                array_push($datasource_item_sids, $item['STYLE_SID']);  
            }
                array_push($datasource_item_sids, $item['ITEM_SID']);
            if($i == $nitems) {
                break; 
            }
        }
        if(count($datasource_item_sids) > 0) {
            //Convert skus to comma seperated values.
            //$datasource_item_sids = "'" . implode("','",$datasource_item_sids) . "'";             
            //Load in Database Helpers
            require_once(realpath(dirname( __FILE__ ) )."/../../../../inc/dbhelper.class.php");
            //var_dump($this->_magmiconfig->load()->get("DATABASE","host","localhost"));
            $db = new DBHelper();
            $host=$this->_magmiconfig->load()->get("DATABASE","host","localhost");
            $dbname=$this->_magmiconfig->load()->get("DATABASE","dbname","magento");
            $user=$this->_magmiconfig->load()->get("DATABASE","user");
            $pass=$this->_magmiconfig->load()->get("DATABASE","password");
            $debug=$this->_magmiconfig->load()->get("DATABASE","debug");
            $conn=$this->_magmiconfig->load()->get("DATABASE","connectivity","net");
            $port=$this->_magmiconfig->load()->get("DATABASE","port","3306");
            $socket=$this->_magmiconfig->load()->get("DATABASE","unix_socket");
            $prefix=$this->_magmiconfig->load()->get("DATABASE","table_prefix");
            $db->initDb($host,$dbname,$user,$pass,$port,$socket,$conn,$debug);
            //Setup tables
            $ea     = $prefix!=""?$prefix."eav_attribute":"eav_attribute";
            $cpe     = $prefix!=""?$prefix."catalog_product_entity":"catalog_product_entity";
            $cpei     = $prefix!=""?$prefix."catalog_product_entity_int":"catalog_product_entity_int";
            //Get "status" attribute_id
            $status_attr_id = "SELECT attribute_id FROM $ea WHERE attribute_code = 'status'";               
            $result = $db->selectAll($status_attr_id);  
            if (count($result) == 1) {
                $attribute_id = $result[0]['attribute_id'];
            }
            unset($result);
            //Get all active items
            $sql = "SELECT e.sku, e.entity_id FROM $cpei i
                              INNER JOIN $cpe e ON
                              e.entity_id = i.entity_id
                              WHERE attribute_id=?
                              AND i.value = 1";
            $all_magento_items = $db->selectAll($sql, array($attribute_id));
            //Setup the magento_skus array for easy processing.
            $magento_skus = array();
            foreach($all_magento_items as $item)
            {
                $magento_skus[$item['sku']] = $item['entity_id'];
            }

            //process the array, move anything thats in the datasource.
            foreach($datasource_item_sids as $sku)
            {
                if(isset($magento_skus[$sku]))
                {
                    unset($magento_skus[$sku]);
                }
            }
            if(!empty($magento_skus))
            {               
                foreach($magento_skus as $sku => $id)
                {
                    $this->log("Disabling Item Id $id with SKU: $sku", "info"); 
                    $this->update("
                        UPDATE $cpei i
                        INNER JOIN $cpe e ON
                        e.entity_id = i.entity_id
                        SET VALUE = '2'
                        WHERE attribute_id = ?
                        AND i.value = 1
                        AND e.sku=?", array($attribute_id, $sku));
                }
            }
            else
            {
                //If the Datasource contains all Magento's items.
                $this->log('All items present in datasource.  No items to disable.', "info");       
            }
            $db->exitDb();
            unset($db);
        }
    }
}   
public function isConfigurable($field) {
    $attributes = explode('|',$field);
    $conf_attributes = '';
    foreach($attributes as $attribut) {
        $att = explode(':',$attribut);
        if(count($att) != 2) {
            return false;
            break;
        }
        if($att[1] == '') {
            return false;
            break;
        }
    }
    return true;
}

}

有办法解决这个问题吗?