syntax error fix

persistStorage.py

@@ -33,6 +33,6 @@ def saveLog(message, level='info') -> None:
     with scheduler.lock:
         current_time = datetime.now(TIMEZONE_OBJ)
         message = str(message)
-        JSON_DATASET_PATH = os.path.join(LOGS_DIR, f"{current_time.strftime("%Y-%m")}.csv")
+        JSON_DATASET_PATH = os.path.join(LOGS_DIR, f"{current_time.strftime('%Y-%m')}.csv")
         data_dict = {"time":str(currrent_time),  "level": level, "message": message}
         append_dict_to_csv(JSON_DATASET_PATH, data_dict)