Fatal error: Uncaught Error: Class 'Mage_Directory_Model_Currency' not found in /var/www/new/app/code/core/Mage/Core/Model/App.php:1108 Stack trace: #0 /var/www/new/app/code/core/Mage/Catalog/Model/Product/Attribute/Backend/Groupprice/Abstract.php(62): Mage_Core_Model_App->getBaseCurrencyCode() #1 /var/www/new/app/code/core/Mage/Catalog/Model/Product/Attribute/Backend/Groupprice/Abstract.php(190): Mage_Catalog_Model_Product_Attribute_Backend_Groupprice_Abstract->_getWebsiteCurrencyRates() #2 /var/www/new/app/code/core/Mage/Catalog/Model/Product/Attribute/Backend/Groupprice/Abstract.php(237): Mage_Catalog_Model_Product_Attribute_Backend_Groupprice_Abstract->preparePriceData(Array, 'simple', '1') #3 /var/www/new/app/code/core/Mage/Eav/Model/Entity/Abstract.php(657): Mage_Catalog_Model_Product_Attribute_Backend_Groupprice_Abstract->afterLoad(Object(Mage_Catalog_Model_Product)) #4 /var/www/new/app/code/core/Mage/Eav/Model/Entity/Abstract.php(1641): Mage_Eav_Model_Entity_Abstract->walkAttributes('backend/afterLo...', Array) #5 in /var/www/new/app/code/core/Mage/Core/Model/App.php on line 1108