ecshop Notice: unserialize() includes\cls_session.php on line 163

Notice: unserialize() [function.unserialize]: Error at offset 46 of 70 bytes inD:\wamp\apps\ECShop_2.7.3_GBK_release1106\upload\includes\cls_session.php on line 163

if(isset($session['data'])){$GLOBALS['_SESSION']  = unserialize($session['data']);$GLOBALS['_SESSION']['user_id'] = $session['userid'];$GLOBALS['_SESSION']['admin_id'] = $session['adminid'];$GLOBALS['_SESSION']['user_name'] = $session['user_name'];$GLOBALS['_SESSION']['user_rank'] = $session['user_rank'];$GLOBALS['_SESSION']['discount'] = $session['discount'];$GLOBALS['_SESSION']['email'] = $session['email'];}