Magento 1.5.0.1 Bug: Call to a member function loadPriceData() on a non-object Please do follow steup for solve this error: Open app\code\core\Mage\Catalog\Model\Product\Attribute\Backend\Tierprice.php Comment out lines from 202 to 219 Error:Fatal error: Call to a member function loadPriceData() on a non-object in E:\wamp\www\magento\app\code\core\Mage\Catalog\Model\Product\Attribute\Backend\Tierprice.php on line 202 [htmlscript] <?php /* $data = $this->_getResource()->loadPriceData($object->getId(), $websiteId); foreach ($data as $k => $v) { $data[$k]['website_price'] = $v['price']; if ($v['all_groups']) { $data[$k]['cust_group'] = Mage_Customer_Model_Group::CUST_GROUP_ALL; } } if (!$object->getData('_edit_mode') && $websiteId) { $rates = $this->_getWebsiteRates(); $full = $data; $data = array(); foreach ($full as $v) { $key = join('-', array($v['cust_group'], $v['price_qty'])); if ($v['website_id'] == $websiteId) { $data[$key] = $v; $data[$key]['website_price'] = $v['price']; } else if ($v['website_id'] == 0 && !isset($data[$key])) { $data[$key] = $v; $data[$key]['website_id'] = $websiteId; if ($object->getPriceModel()->isTierPriceFixed()) { $data[$key]['price'] = $v['price'] * $rates[$websiteId]['rate']; $data[$key]['website_price'] =…