在symfony2的欢迎页面上获取错误消息

I am a newbie on Symfony2 and i get some trouble while start to use it.

I have downloaded Symfony-2.5.5.zip from the official site and unzip it to my server.

What i have done the the original files is just comment the "only local host can access" part on web/config.php and web/app_dev.php.

And I get the following message when i get into the welcome page.

FatalErrorException: Error: Call to a member function push() on a non-object in /share/CACHEDEV1_DATA/Web/Symfony/app/bootstrap.php.cache line 2963

Here is the site link: http://zerofibre.ddns.net/Symfony/web/app_dev.php

However I find that the same code run properly on another server....

Is that seems to be a server setting problem?

My php version is 5.3.28.

PHP 5.3.28 (cli) (built: Jun 12 2014 01:59:51)

Sorry for my poor English.Thanks