Fatal error: Uncaught Error: Call to a member function getSellername() on null in /workspace/sites/martnets.com/catalog/controller/extension/module/purpletree_sellerdetail.php:16 Stack trace: #0 /workspace/sites/martnets.com/vqmod/vqcache/vq2-system_engine_action.php(51): ControllerExtensionModulePurpletreeSellerdetail->index(Array) #1 /workspace/sites/martnets.com/vqmod/vqcache/vq2-system_engine_loader.php(24): Action->execute(Object(Registry), Array) #2 /workspace/sites/martnets.com/catalog/controller/common/column_right.php(52): Loader->controller('extension/modul...') #3 /workspace/sites/martnets.com/vqmod/vqcache/vq2-system_engine_action.php(51): ControllerCommonColumnRight->index(Array) #4 /workspace/sites/martnets.com/vqmod/vqcache/vq2-system_engine_loader.php(24): Action->execute(Object(Registry), Array) #5 /workspace/sites/martnets.com/catalog/controller/product/product.php(483): Loader->controller('common/column_r...') #6 /workspace/sites/martnets.com/vqmod/vqcache/vq2-system_engine_action.php(51): ControllerPro in /workspace/sites/martnets.com/catalog/controller/extension/module/purpletree_sellerdetail.php on line 16