fixed #1406

src/controllers/categories.js

@@ -66,6 +66,11 @@ categoriesController.get = function(req, res, next) {
 		uid = req.user ? req.user.uid : 0;
 
 	async.waterfall([
+		function(next) {
+			categories.getCategoryField(cid, 'disabled', function(err, disabled) {
+				next(disabled === '1' ? new Error('category-disabled') : undefined);
+			});
+		},
 		function(next) {
 			categoryTools.privileges(cid, uid, function(err, categoryPrivileges) {
 				if (err) {