我有 Magento 版本。安装了 1.7.0.2，有几个扩展。安装新主题时，该主题中包含一些扩展。（Ves Hitec 使用“magento_easy_tabs-1.1”、“Mpycho_Jquery_Lightboxes-1.2.0”、“Venustheme_ProductScroll-1.1.0”）似乎是“Venustheme_ProductScroll-1.1.0”导致了问题。当点击 Ves_extension>productscroll>configuration 时，我会收到“处理您的请求时出错”错误（其他菜单选项正常）。在前端主页上，我得到“内部服务器错误”-产品页面正常。
我已经搜索了将近 2 周，包括尝试与供应商/开发人员取得联系但没有运气！！
我认为这是一些冲突，并不难解决，请引导我走向正确的方向。
这是错误：
a:5:{i:0;s:105:"Invalid config field backend model: venustheme_productscroll/system_config_backend_productscroll_checkQty";i:1;s:2024:"#0 /usr/local/pem/vhosts/102089/webspace/httpdocs/magento/app/code/core/Mage/Adminhtml/Block/System/Config/Form.php(328): Mage::throwException('Invalid config ...')
#1/usr/local/pem/vhosts/102089/webspace/httpdocs/magento/app/code/core/Mage/Adminhtml/Block/System/Config/Form.php(229): Mage_Adminhtml_Block_System_Config_Form->initFields(Object(Varien_Data_Form_Element_Fieldset), Object(Mage_Core_Model_Config_Element), Object(Mage_Core_Model_Config_Element))
#2/usr/local/pem/vhosts/102089/webspace/httpdocs/magento/app/code/core/Mage/Adminhtml/Block/System/Config/Form.php(164): Mage_Adminhtml_Block_System_Config_Form->_initGroup(Object(Varien_Data_Form), Object(Mage_Core_Model_Config_Element), Object(Mage_Core_Model_Config_Element))
#3 /usr/local/pem/vhosts/102089/webspace/httpdocs/magento/app/code/core/Mage/Adminhtml/Block/System/Config/Edit.php(92): Mage_Adminhtml_Block_System_Config_Form->initForm()
#4 /usr/local/pem/vhosts/102089/webspace/httpdocs/magento/app/code/core/Mage/Adminhtml/controllers/System/ConfigController.php(107): Mage_Adminhtml_Block_System_Config_Edit->initForm()
#5 /usr/local/pem/vhosts/102089/webspace/httpdocs/magento/app/code/core/Mage/Core/Controller/Varien/Action.php(419): Mage_Adminhtml_System_ConfigController->editAction()
#6 /usr/local/pem/vhosts/102089/webspace/httpdocs/magento/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(250): Mage_Core_Controller_Varien_Action->dispatch('edit')
#7 /usr/local/pem/vhosts/102089/webspace/httpdocs/magento/app/code/core/Mage/Core/Controller/Varien/Front.php(176): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#8 /usr/local/pem/vhosts/102089/webspace/httpdocs/magento/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#9 /usr/local/pem/vhosts/102089/webspace/httpdocs/magento/app/Mage.php(683): Mage_Core_Model_App->run(Array)
#10 /usr/local/pem/vhosts/102089/webspace/httpdocs/magento/index.php(104): Mage::run('', 'store')
#11 {main}";s:3:"url";s:120:"/magento/index.php/admin/admin/system_config/edit/section/venustheme_productscroll/key/0ab4cfadfe0b55f2cca35f94d7f388ed/";s:11:"script_name";s:18:"/magento/index.php";s:4:"skin";s:5:"admin";} here