dont ignore error

src/categories/topics.js

@@ -36,9 +36,10 @@ module.exports = function(Categories) {
 							topics[i].index = data.start + i;
 						}
 
-						plugins.fireHook('filter:category.topics.get', {topics: topics, uid: data.uid}, function(err, params) {
-							next(null, params.topics);
-						});
+						plugins.fireHook('filter:category.topics.get', {topics: topics, uid: data.uid}, next);
+					},
+					function(results, next) {
+						next(null, results.topics);
 					}
 				], next);
 			}