diff --git a/core/Errors.py b/core/Errors.py
index a0e6f1b..d4ee750 100644
--- a/core/Errors.py
+++ b/core/Errors.py
@@ -51,4 +51,6 @@ class FileIntegrityError(Exception):
 class EndpointVerificationError(Exception):
     pass
 class SingboxNotInstalledException(Exception):
+    pass
+class PaymentRequiredError(Exception):
     pass
\ No newline at end of file
diff --git a/core/controllers/ConnectionController.py b/core/controllers/ConnectionController.py
index 35ef893..623dbdf 100644
--- a/core/controllers/ConnectionController.py
+++ b/core/controllers/ConnectionController.py
@@ -1,6 +1,5 @@
 from collections.abc import Callable
 from core.Constants import Constants
-from core.Errors import InvalidSubscriptionError, MissingSubscriptionError, ConnectionUnprotectedError, ConnectionTerminationError, CommandNotFoundError
 from core.controllers.ConfigurationController import ConfigurationController
 from core.controllers.ProfileController import ProfileController
 from core.controllers.SessionStateController import SessionStateController
@@ -13,6 +12,7 @@ from core.services.WebServiceApiService import WebServiceApiService
 from essentials.modules.TorModule import TorModule
 from essentials.services.ConnectionService import ConnectionService
 from pathlib import Path
+from core.Errors import InvalidSubscriptionError, MissingSubscriptionError, ConnectionUnprotectedError, ConnectionTerminationError, CommandNotFoundError, PaymentRequiredError
 from subprocess import CalledProcessError
 from typing import Union, Optional, Any
 import os
@@ -105,7 +105,7 @@ class ConnectionController:
                 )
 
                 if operator_proxy_session is None:
-                    raise InvalidSubscriptionError()
+                    raise PaymentRequiredError()
 
                 profile.attach_operator_proxy_session(operator_proxy_session)
 
diff --git a/core/controllers/ProfileController.py b/core/controllers/ProfileController.py
index 688837c..cade914 100644
--- a/core/controllers/ProfileController.py
+++ b/core/controllers/ProfileController.py
@@ -1,4 +1,4 @@
-from core.Errors import InvalidSubscriptionError, MissingSubscriptionError, ConnectionTerminationError, ProfileActivationError, ProfileDeactivationError, MissingLocationError, ConnectionUnprotectedError, EndpointVerificationError, ProfileStateConflictError
+from core.Errors import InvalidSubscriptionError, MissingSubscriptionError, ConnectionTerminationError, ProfileActivationError, ProfileDeactivationError, MissingLocationError, ConnectionUnprotectedError, EndpointVerificationError, ProfileStateConflictError, PaymentRequiredError
 from core.controllers.ApplicationController import ApplicationController
 from core.controllers.ApplicationVersionController import ApplicationVersionController
 from core.controllers.SessionStateController import SessionStateController
@@ -140,15 +140,27 @@ class ProfileController:
         from core.controllers.ConnectionController import ConnectionController
 
         if profile.has_subscription():
-            
-            print(f"DEBUG activate_subscription:")
-            print(f"  billing_code: {profile.subscription.billing_code}")
-            print(f"  operator_id: {profile.subscription.operator_id}")
-            
+
+            # Operator profiles (vless/hysteria2): check if already activated locally first.
+            # If not, poll the server — the payment may have been processed since last attempt.
+            if profile.subscription.operator_id is not None:
+                if profile.subscription.has_been_activated():
+                    profile.save()
+                    return
+                subscription = ConnectionController.with_preferred_connection(
+                    profile.subscription.billing_code,
+                    task=WebServiceApiService.get_subscription,
+                    connection_observer=connection_observer
+                )
+                if subscription is not None:
+                    profile.subscription = subscription
+                    profile.save()
+                    return
+                else:
+                    raise PaymentRequiredError()
+
             subscription = ConnectionController.with_preferred_connection(profile.subscription.billing_code, task=WebServiceApiService.get_subscription, connection_observer=connection_observer)
 
-            print(f"  get_subscription returned: {subscription}")
-            
             if subscription is not None:
                 profile.subscription = subscription
                 profile.save()
@@ -157,7 +169,7 @@ class ProfileController:
 
         else:
             raise MissingSubscriptionError()
-            
+
     @staticmethod
     def is_enabled(profile: Union[SessionProfile, SystemProfile]):
 
@@ -299,4 +311,4 @@ class ProfileController:
         return dict(
             private=base64.b64encode(private_key).decode(),
             public=base64.b64encode(public_key).decode()
-        )
+        )
\ No newline at end of file