Update src/app/hooks/useUserProfile.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: Just-Insane

src/app/hooks/useUserProfile.ts

@@ -105,7 +105,8 @@ export const useUserProfile = (
   const setGlobalProfiles = useSetAtom(profilesCacheAtom);
 
   const hasOnlyFetchedMarker =
-    cached?._fetched === true && Object.keys(cached).every((key) => key === '_fetched');
+    cached?._fetched === true &&
+    Object.keys(cached ?? {}).every((key) => key === '_fetched');
 
   const needsFetch =
     !!userId && userId !== 'undefined' && (!cached?._fetched || hasOnlyFetchedMarker);