fixes

app.py

@@ -355,7 +355,14 @@ if __name__ == "__main__":
             payload = request_payload(query, lang, exact_search, k, received_results)
             err = extract_error_from_payload(payload)
             if err is not None:
-                return process_error(err, payload)
+                return (
+                    [],
+                    [],
+                    0,
+                    False,
+                    process_error(err, payload),
+                    [],
+                )
 
             (
                 processed_results,