后台分类管理出现错误

 Fatal error: Call to a member function getId() on a non-object in

在数据库中运行以下sql语句

INSERT INTO catalog_category_entity(entity_id,entity_type_id,attribute_set_id,parent_id,created_at,updated_at,path,POSITION,level,children_count) VALUES (1,3,0,0,'0000-00-00 00:00:00','2009-02-20 00:25:34','1',1,0,1),(2,3,3,0,'2009-02-20 00:25:34','2009-02-20 00:25:34','1/2',1,1,0); INSERT INTO catalog_category_entity_int(value_id,entity_type_id,attribute_id,store_id,entity_id,value) VALUES (1,3,32,0,2,1),(2,3,32,1,2,1); INSERT INTO catalog_category_entity_varchar(value_id,entity_type_id,attribute_id,store_id,entity_id,value) VALUES (1,3,31,0,1,'Root Catalog'),(2,3,33,0,1,'root-catalog'),(3,3,31,0,2,'Default Category'),(4,3,39,0,2,'PRODUCTS'),(5,3,33,0,2,'default-category');