diff --git a/dev/Common/Translator.js b/dev/Common/Translator.js
index 47f674400..a979eb817 100644
--- a/dev/Common/Translator.js
+++ b/dev/Common/Translator.js
@@ -14,15 +14,16 @@ export const trigger = ko.observable(false);
  * @returns {string}
  */
 export function i18n(key, valueList, defaulValue) {
-	let path = key.split('/'),
-		result = I18N_DATA[path[0]][path[1]] || defaulValue || key;
-
+	let path = key.split('/');
+	if (!I18N_DATA[path[0]] || !path[1]) {
+		return defaulValue || key;
+	}
+	let result = I18N_DATA[path[0]][path[1]] || defaulValue || key;
 	if (valueList) {
 		Object.entries(valueList).forEach(([key, value]) => {
 			result = result.replace('%' + key + '%', value);
 		});
 	}
-
 	return result;
 }