diff --git a/src/signage/src/signage/ros_service_interface.py b/src/signage/src/signage/ros_service_interface.py
index 20720ef..d8f7dc1 100644
--- a/src/signage/src/signage/ros_service_interface.py
+++ b/src/signage/src/signage/ros_service_interface.py
@@ -23,17 +23,20 @@
 
 
 class RosServiceInterface:
-    def __init__(self, node):
+    def __init__(self, node, parameter_interface):
         self._node = node
         self._created_client_dict = {}
         self._lock = threading.RLock()
 
-        self._cli_accept_start = self.__create_client(AcceptStart, "/api/motion/accept_start")
+        self._parameter = parameter_interface.parameter
+        if self._parameter.signage_stand_alone:
+            self._cli_accept_start = self.__create_client(AcceptStart, "/api/motion/accept_start")
 
     # service call function
     def accept_start(self):
-        request = AcceptStart.Request()
-        self.__service_call(self._cli_accept_start, request, True)
+        if self._parameter.signage_stand_alone:
+            request = AcceptStart.Request()
+            self.__service_call(self._cli_accept_start, request, True)
 
     # common denominator
     def __create_client(self, service_type, service_name):
diff --git a/src/signage/src/signage/route_handler.py b/src/signage/src/signage/route_handler.py
index 884d9a1..a611bdc 100644
--- a/src/signage/src/signage/route_handler.py
+++ b/src/signage/src/signage/route_handler.py
@@ -152,6 +152,9 @@ def process_station_list_from_fms(self, force_update=False):
             data = json.loads(respond.text)
 
             if not data:
+                self._schedule_details = utils.init_ScheduleDetails()
+                self._display_details = utils.init_DisplayDetails()
+                self._current_task_details = utils.init_CurrentTask()
                 raise Exception("No data from fms")
             elif utils.check_schedule_update(self._schedule_details, data) and not force_update:
                 self._fms_check_time = self._node.get_clock().now()
@@ -166,6 +169,9 @@ def process_station_list_from_fms(self, force_update=False):
             self.task_list = utils.seperate_task_list(data.get("tasks", []))
 
             if not self.task_list.doing_list:
+                self._schedule_details = utils.init_ScheduleDetails()
+                self._display_details = utils.init_DisplayDetails()
+                self._current_task_details = utils.init_CurrentTask()
                 raise Exception("doing_list is not found, skip")
 
             for task in self.task_list.doing_list:
diff --git a/src/signage/src/signage/signage.py b/src/signage/src/signage/signage.py
index d189c1c..146e666 100644
--- a/src/signage/src/signage/signage.py
+++ b/src/signage/src/signage/signage.py
@@ -27,7 +27,7 @@ def main(args=None):
 
     autoware_interface = AutowareInterface(node)
     parameter_interface = ParameterInterface(node)
-    ros_service_interface = RosServiceInterface(node)
+    ros_service_interface = RosServiceInterface(node, parameter_interface)
     viewController = ViewControllerProperty(node, parameter_interface)
     announceController = AnnounceControllerProperty(node, autoware_interface, parameter_interface)
     route_handler = RouteHandler(