我在Magento中有一个后端和前端错误，Stackoverflow上的其他帖子和Google都没有找到解决方案。
Magento给出的错误：
Cannot send headers; headers already sent in /home/blackber/public_html/lib/aitpagecache/config.php, line 110
Trace:
#0 /home/blackber/public_html/lib/Zend/Controller/Response/Abstract.php(114): Zend_Controller_Response_Abstract->canSendHeaders(true)
#1 /home/blackber/public_html/app/code/core/Mage/Core/Model/App.php(1181): Zend_Controller_Response_Abstract->setHeader('Content-Type', 'text/html; char...')
#2 /home/blackber/public_html/app/code/core/Mage/Core/Controller/Varien/Front.php(80): Mage_Core_Model_App->getResponse()
#3 /home/blackber/public_html/app/code/core/Mage/Core/Model/Url/Rewrite.php(171): Mage_Core_Controller_Varien_Front->getResponse()
#4 /home/blackber/public_html/app/code/core/Mage/Core/Controller/Varien/Front.php(147): Mage_Core_Model_Url_Rewrite->rewrite()
#5 /home/blackber/public_html/app/Mage.php(459): Mage_Core_Controller_Varien_Front->dispatch()
#6 /home/blackber/public_html/index.php(114): Mage::run('bbunlock', 'website')
#7 {main}
最近几天没有任何改变，2家商店目前处于离线状态（Magento安装相同）。