diff --git a/src/hooks/auth/useMessageEventReactions.ts b/src/hooks/auth/useOauthEventListeners.ts
similarity index 82%
rename from src/hooks/auth/useMessageEventReactions.ts
rename to src/hooks/auth/useOauthEventListeners.ts
index e1dc70f9..320804fe 100644
--- a/src/hooks/auth/useMessageEventReactions.ts
+++ b/src/hooks/auth/useOauthEventListeners.ts
@@ -1,14 +1,14 @@
 import { useEffect } from 'react';
 
 import { EventMessageType } from '~/constants/events';
-import { Dialog } from '~/constants/modal';
 import { useAuth } from '~/hooks/auth/useAuth';
 import { useOAuth } from '~/hooks/auth/useOAuth';
 import { useModal } from '~/hooks/modal/useModal';
 import { includes, path, values } from '~/utils/ramda';
+import { showToastError } from '~/utils/toast';
 
 /** reacts to events passed by window.postMessage */
-export const useMessageEventReactions = () => {
+export const useOauthEventListeners = () => {
   const { loginWithSocial, createSocialAccount, attachAccount } = useOAuth();
   const { showModal } = useModal();
   const { isUser } = useAuth();
@@ -25,7 +25,6 @@ export const useMessageEventReactions = () => {
 
       switch (type) {
         case EventMessageType.OAuthLogin:
-          // TODO: do we really need it?
           loginWithSocial(path(['data', 'payload', 'token'], event));
           break;
         case EventMessageType.OAuthProcessed:
@@ -35,6 +34,12 @@ export const useMessageEventReactions = () => {
             void createSocialAccount(path(['data', 'payload', 'token'], event));
           }
           break;
+        case EventMessageType.OAuthError:
+          const message = path(['data', 'payload', 'error'], event);
+          if (message && typeof message === 'string') {
+            showToastError(message);
+          }
+          break;
         default:
           console.log('unknown message', event.data);
       }
diff --git a/src/utils/providers/AuthProvider.tsx b/src/utils/providers/AuthProvider.tsx
index 9e325a6b..34aa4200 100644
--- a/src/utils/providers/AuthProvider.tsx
+++ b/src/utils/providers/AuthProvider.tsx
@@ -4,7 +4,7 @@ import { observer } from 'mobx-react-lite';
 
 import { EMPTY_USER } from '~/constants/auth';
 import { useAuth } from '~/hooks/auth/useAuth';
-import { useMessageEventReactions } from '~/hooks/auth/useMessageEventReactions';
+import { useOauthEventListeners } from '~/hooks/auth/useOauthEventListeners';
 import { useRestorePasswordRedirect } from '~/hooks/auth/useRestorePasswordRedirect';
 import { useSessionCookie } from '~/hooks/auth/useSessionCookie';
 
@@ -14,7 +14,7 @@ const AuthContext = createContext<AuthProviderContextType>({
   user: EMPTY_USER,
   isUser: false,
   isTester: false,
-  setIsTester: isTester => isTester,
+  setIsTester: (isTester) => isTester,
   logout: () => {},
   login: async () => EMPTY_USER,
   setToken: () => {},
@@ -23,7 +23,7 @@ const AuthContext = createContext<AuthProviderContextType>({
 export const AuthProvider: FC = observer(({ children }) => {
   const value = useAuth();
 
-  useMessageEventReactions();
+  useOauthEventListeners();
   useRestorePasswordRedirect();
   useSessionCookie();