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(1/1) CoreException

Invalid argument

in SortOrder.php line 127
at SortOrder::newFromString('price')in ProductListingFrontController.php line 286
at ProductListingFrontControllerCore->getProductSearchVariables()in ProductListingFrontController.php line 589
at ProductListingFrontControllerCore->doProductSearch('catalog/listing/category', array('entity' => 'category', 'id' => 24))in CategoryController.php line 148
at CategoryControllerCore->initContent()in Controller.php line 306
at ControllerCore->run()in Dispatcher.php line 525
at DispatcherCore->dispatch()in index.php line 28