fix signal

backend/order/signals.py

@@ -2,7 +2,7 @@ from django.db.models.signals import pre_save
 from django.dispatch import receiver
 from .models import OrderModel
 from account.models import PushSubscription
-
+import ghasedak_sms
 
 @receiver(pre_save, sender=OrderModel)
 def order_status_changed(sender, instance, **kwargs):