Only save access token if accessToken property exists

src/components/contexts/UserContext.jsx

@@ -75,7 +75,7 @@ export const UserProvider = ({ children }) => {
 
   const signedIn = (token) => {
     setToken(token);
-    if (!sessionStorage) return;
+    if (!sessionStorage || !token || !token.accessToken) return;
     sessionStorage.setItem("token", JSON.stringify(token));
   }