We have an issue on checkout. Customers are not able to redirect on the payment gateway in some cases. Help is welcome.
We are using the Magento version 2.3.3 and we are getting below error.
Error: Uncaught exception 'Error' with message 'Call to undefined method Magento\Catalog\Model\Product\Type\Simple::getConfigurableAttributeCollection()' in /home/ortlieb/public_html/vendor/magento/module-configurable-product/Helper/Product/Options/Loader.php:52
Error: Uncaught exception 'Error' with message 'Call to undefined method Magento\Catalog\Model\Product\Type\Simple::getConfigurableAttributeCollection()' in /home/ortlieb/public_html/vendor/magento/module-configurable-product/Helper/Product/Options/Loader.php:52 in Magento\ConfigurableProduct\Helper\Product\Options\Loader::load called at /home/ortlieb/public_html/vendor/magento/module-configurable-product/Model/Product/ReadHandler.php (48) in Magento\ConfigurableProduct\Model\Product\ReadHandler::execute called at /home/ortlieb/public_html/vendor/magento/framework/EntityManager/Operation/Read/ReadExtensions.php (48) in Magento\Framework\EntityManager\Operation\Read\ReadExtensions::execute called at /home/ortlieb/public_html/vendor/magento/framework/EntityManager/Operation/Read.php (112) in Magento\Framework\EntityManager\Operation\Read::execute called at /home/ortlieb/public_html/vendor/magento/framework/EntityManager/EntityManager.php (70) in Magento\Framework\EntityManager\EntityManager::load called at /home/ortlieb/public_html/vendor/magento/module-catalog/Model/ResourceModel/Product.php (648) in Magento\Catalog\Model\ResourceModel\Product::load called at /home/ortlieb/public_html/generated/code/Magento/Catalog/Model/ResourceModel/Product/Interceptor.php (258) in Magento\Catalog\Model\ResourceModel\Product\Interceptor::load called at /home/ortlieb/public_html/vendor/magento/framework/Model/AbstractModel.php (540) in Magento\Framework\Model\AbstractModel::load called at /home/ortlieb/public_html/vendor/magento/framework/Interception/Interceptor.php (58) in Magento\Catalog\Model\Product\Interceptor::___callParent called at /home/ortlieb/public_html/vendor/magento/framework/Interception/Interceptor.php (138) in Magento\Catalog\Model\Product\Interceptor::Magento\Framework\Interception{closure} called at /home/ortlieb/public_html/vendor/magento/framework/Interception/Interceptor.php (153) in Magento\Catalog\Model\Product\Interceptor::___callPlugins called at