openx广告调用求助

我用的是openx2.8.6，添加广告后生成代码调用不知道什么原因页面不显示或者说是空广告位。
<!--/* 以下是系统生成的调用代码 */-->
<script type='text/javascript'><!--//<![CDATA[
   var m3_u = (location.protocol=='https:'?'https://117.79.236.76/jinfei/www/delivery/ajs.php':'http://117.79.236.76/jinfei/www/delivery/ajs.php');
   var m3_r = Math.floor(Math.random()*99999999999);
   if (!document.MAX_used) document.MAX_used = ',';
   document.write ("<scr"+"ipt type='text/javascript' src='"+m3_u);
   document.write ("?zoneid=3");
   document.write ('&cb=' + m3_r);
   if (document.MAX_used != ',') document.write ("&exclude=" + document.MAX_used);
   document.write (document.charset ? '&charset='+document.charset : (document.characterSet ? '&charset='+document.characterSet : ''));
   document.write ("&loc=" + escape(window.location));
   if (document.referrer) document.write ("&referer=" + escape(document.referrer));
   if (document.context) document.write ("&context=" + escape(document.context));
   if (document.mmm_fo) document.write ("&mmm_fo=1");
   document.write ("'><\/scr"+"ipt>");
//]]>--></script><noscript><a href='http://117.79.236.76/jinfei/www/delivery/ck.php?n=a6beb203&cb=INSERT_RANDOM_NUMBER_HERE' target='_blank'><img src='http://117.79.236.76/jinfei/www/delivery/avw.php?zoneid=3&cb=INSERT_RANDOM_NUMBER_HERE&n=a6beb203' border='0' alt='' /></a></noscript>




<script type='text/javascript'><!--//<![CDATA[
   var m3_u = (location.protocol=='https:'?'https://117.79.236.76/jinfei/www/delivery/ajs.php':'http://117.79.236.76/jinfei/www/delivery/ajs.php');
   var m3_r = Math.floor(Math.random()*99999999999);
   if (!document.MAX_used) document.MAX_used = ',';
   document.write ("<scr"+"ipt type='text/javascript' src='"+m3_u);
   document.write ("?zoneid=1");
   document.write ('&cb=' + m3_r);
   if (document.MAX_used != ',') document.write ("&exclude=" + document.MAX_used);
   document.write (document.charset ? '&charset='+document.charset : (document.characterSet ? '&charset='+document.characterSet : ''));
   document.write ("&loc=" + escape(window.location));
   if (document.referrer) document.write ("&referer=" + escape(document.referrer));
   if (document.context) document.write ("&context=" + escape(document.context));
   if (document.mmm_fo) document.write ("&mmm_fo=1");
   document.write ("'><\/scr"+"ipt>");
//]]>--></script><noscript><a href='http://117.79.236.76/jinfei/www/delivery/ck.php?n=ab3cb876&cb=INSERT_RANDOM_NUMBER_HERE' target='_blank'><img src='http://117.79.236.76/jinfei/www/delivery/avw.php?zoneid=1&cb=INSERT_RANDOM_NUMBER_HERE&n=ab3cb876' border='0' alt='' /></a></noscript>



如果不明白请加我qq:240518333，谢谢各位了！！

1.可能广告尚未生效


Time Between Banner Cache Updates (seconds) 预设1200 把他改成30吧～30秒就生效了


2.可能放广告的网站不支援你的javascript 广告code