diff --git a/src/App.test.tsx b/src/App.test.tsx
index 3da4e42..d9c6394 100644
--- a/src/App.test.tsx
+++ b/src/App.test.tsx
@@ -1,4 +1,4 @@
-import { render, screen, waitFor } from "@testing-library/react";
+import { render, screen } from "@testing-library/react";
 import fetchMock from "jest-fetch-mock";
 fetchMock.enableMocks();
 
diff --git a/src/i18n/de.ts b/src/i18n/de.ts
index 2331268..e1b8433 100644
--- a/src/i18n/de.ts
+++ b/src/i18n/de.ts
@@ -2,7 +2,7 @@ import { formalGermanMessages } from "@haleos/ra-language-german";
 
 import { SynapseTranslationMessages } from ".";
 
-const de: SynapseTranslationMessages = {
+const fixedGermanMessages = {
   ...formalGermanMessages,
   ra: {
     ...formalGermanMessages.ra,
@@ -10,8 +10,30 @@ const de: SynapseTranslationMessages = {
       ...formalGermanMessages.ra.navigation,
       no_filtered_results: "Keine Ergebnisse",
       clear_filters: "Alle Filter entfernen",
+      add_filter: "Filter hinzufügen",
+    },
+    action: {
+      ...formalGermanMessages.ra.action,
+      update_application: "Anwendung aktualisieren",
+    },
+    page: {
+      ...formalGermanMessages.ra.page,
+      empty: "Leer",
+      access_denied: "Zugriff verweigert",
+      authentication_error: "Authentifizierungsfehler",
+    },
+    message: {
+      ...formalGermanMessages.ra.message,
+      access_denied:
+        "Sie haben nicht die richtigen Berechtigungen um auf diese Seite zuzugreifen.",
+      authentication_error:
+        "Der Authentifizierungsserver hat einen Fehler zurückgegeben und Ihre Anmeldedaten konnten nicht überprüft werden.",
     },
   },
+}
+
+const de: SynapseTranslationMessages = {
+  ...fixedGermanMessages,
   synapseadmin: {
     auth: {
       base_url: "Heimserver URL",
diff --git a/src/i18n/ru.ts b/src/i18n/ru.ts
index f2492a9..b3773b1 100644
--- a/src/i18n/ru.ts
+++ b/src/i18n/ru.ts
@@ -2,7 +2,7 @@ import russianMessages from "ra-language-russian";
 
 import { SynapseTranslationMessages } from ".";
 
-const ru: SynapseTranslationMessages = {
+const fixedRussianMessages = {
   ...russianMessages,
   ra: {
     ...russianMessages.ra,
@@ -11,7 +11,24 @@ const ru: SynapseTranslationMessages = {
       no_filtered_results: "Нет результатов",
       clear_filters: "Все фильтры сбросить",
     },
+    page: {
+      ...russianMessages.ra.page,
+      empty: "Пусто",
+      access_denied: "Доступ запрещен",
+      authentication_error: "Ошибка аутентификации",
+    },
+    message: {
+      ...russianMessages.ra.message,
+      access_denied:
+        "У вас нет прав доступа к этой странице.",
+      authentication_error:
+        "Сервер аутентификации вернул ошибку и не смог проверить ваши учетные данные.",
+    },
   },
+}
+
+const ru: SynapseTranslationMessages = {
+  ...fixedRussianMessages,
   synapseadmin: {
     auth: {
       base_url: "Адрес домашнего сервера",
diff --git a/src/i18n/zh.ts b/src/i18n/zh.ts
index 0a3113c..ec96389 100644
--- a/src/i18n/zh.ts
+++ b/src/i18n/zh.ts
@@ -2,7 +2,7 @@ import chineseMessages from "@haxqer/ra-language-chinese";
 
 import { SynapseTranslationMessages } from ".";
 
-const zh: SynapseTranslationMessages = {
+const fixedChineseMessages = {
   ...chineseMessages,
   ra: {
     ...chineseMessages.ra,
@@ -11,7 +11,27 @@ const zh: SynapseTranslationMessages = {
       no_filtered_results: "没有结果",
       clear_filters: "清除所有过滤器",
     },
+    action: {
+      ...chineseMessages.ra.action,
+      update_application: "Anwendung aktualisieren",
+    },
+    page: {
+      ...chineseMessages.ra.page,
+      access_denied: "拒绝访问",
+      authentication_error: "认证错误",
+    },
+    message: {
+      ...chineseMessages.ra.message,
+      access_denied:
+        "您没有访问此页面的权限。",
+      authentication_error:
+        "身份验证服务器返回错误，无法验证您的凭据。",
+    },
   },
+}
+
+const zh: SynapseTranslationMessages = {
+  ...fixedChineseMessages,
   synapseadmin: {
     auth: {
       base_url: "服务器 URL",
diff --git a/src/synapse/authProvider.test.ts b/src/synapse/authProvider.test.ts
index d47894f..16cf298 100644
--- a/src/synapse/authProvider.test.ts
+++ b/src/synapse/authProvider.test.ts
@@ -30,7 +30,7 @@ describe("authProvider", () => {
       });
 
       expect(ret).toEqual({redirectTo: "/"});
-      expect(fetch).toBeCalledWith("http://example.com/_matrix/client/r0/login", {
+      expect(fetch).toHaveBeenCalledWith("http://example.com/_matrix/client/r0/login", {
         body: '{"device_id":null,"initial_device_display_name":"Synapse Admin","type":"m.login.password","identifier":{"type":"m.id.user","user":"@user:example.com"},"password":"secret"}',
         headers: new Headers({
           Accept: "application/json",
@@ -83,7 +83,7 @@ describe("authProvider", () => {
 
       await authProvider.logout(null);
 
-      expect(fetch).toBeCalledWith("example.com/_matrix/client/r0/logout", {
+      expect(fetch).toHaveBeenCalledWith("example.com/_matrix/client/r0/logout", {
         headers: new Headers({
           Accept: "application/json",
           Authorization: "Bearer foo",
@@ -123,7 +123,9 @@ describe("authProvider", () => {
 
   describe("getPermissions", () => {
     it("should do nothing", async () => {
-      await expect(authProvider.getPermissions(null)).resolves.toBeUndefined();
+      if (authProvider.getPermissions) {
+        await expect(authProvider.getPermissions(null)).resolves.toBeUndefined();
+      }
     });
   });
 });
diff --git a/src/synapse/authProvider.ts b/src/synapse/authProvider.ts
index 4ededae..f1c673c 100644
--- a/src/synapse/authProvider.ts
+++ b/src/synapse/authProvider.ts
@@ -1,4 +1,4 @@
-import { AuthProvider, HttpError, Options, fetchUtils, useTranslate } from "react-admin";
+import { AuthProvider, HttpError, Options, fetchUtils } from "react-admin";
 
 import storage from "../storage";
 import { MatrixError, displayError } from "../components/error";