Fatal error: Uncaught Error: Class 'Itoris_Installer_Client' not found in /home2/spikeprint/public_html/app/code/local/Itoris/ProductPriceFormula/Helper/Data.php:42 Stack trace: #0 /home2/spikeprint/public_html/app/design/frontend/base/default/template/itoris/productpriceformula/formula.phtml(31): Itoris_ProductPriceFormula_Helper_Data->isRegisteredAutonomous() #1 /home2/spikeprint/public_html/app/code/core/Mage/Core/Block/Template.php(241): include('/home2/spikepri...') #2 /home2/spikeprint/public_html/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('frontend/base/d...') #3 /home2/spikeprint/public_html/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView() #4 /home2/spikeprint/public_html/app/code/core/Mage/Core/Block/Abstract.php(923): Mage_Core_Block_Template->_toHtml() #5 /home2/spikeprint/public_html/app/code/core/Mage/Core/Block/Text/List.php(43): Mage_Core_Block_Abstract->toHtml() #6 /home2/spikeprint/public_html/app/code/core/Mage/Core/Block/Ab in /home2/spikeprint/public_html/app/code/local/Itoris/ProductPriceFormula/Helper/Data.php on line 42