dont crash if config is undefined, added error to plugins

src/middleware/middleware.js

@@ -463,8 +463,8 @@ middleware.processRender = function(req, res, next) {
 			if (res.locals.renderHeader) {
 				middleware.renderHeader(req, res, function(err, template) {
 					str = template + str;
-
+					var language = res.locals.config ? res.locals.config.userLang || 'en_GB' : 'en_GB';
-					translator.translate(str, res.locals.config.userLang, function(translated) {
+					translator.translate(str, language, function(translated) {
 						fn(err, translated);
 					});
 				});
@@ -568,7 +568,7 @@ middleware.publicTagListing = function(req, res, next) {
 			middleware.ensureLoggedIn(req, res, next);
 		}
 	}
-}
+};
 
 module.exports = function(webserver) {
 	app = webserver;

src/plugins.js

@@ -615,6 +615,7 @@ var fs = require('fs'),
 					pluginMap[plugin.id].description = plugin.description;
 					pluginMap[plugin.id].url = pluginMap[plugin.id].url || plugin.url;
 					pluginMap[plugin.id].installed = true;
+					pluginMap[plugin.id].error = plugin.error;
 					pluginMap[plugin.id].active = plugin.active;
 					pluginMap[plugin.id].error = pluginMap[plugin.id].error || false;
 					pluginMap[plugin.id].version = plugin.version;