diff --git a/python/dify_plugin/core/trigger_factory.py b/python/dify_plugin/core/trigger_factory.py
index fee1a829..d60481a4 100644
--- a/python/dify_plugin/core/trigger_factory.py
+++ b/python/dify_plugin/core/trigger_factory.py
@@ -140,7 +140,9 @@ def get_subscription_constructor_cls(self, provider_name: str) -> type[TriggerSu
     # ------------------------------------------------------------------
 
     def get_trigger_event_handler_safely(self, provider_name: str, event: str, runtime: EventRuntime) -> Event | None:
-        entry = self._get_entry(provider_name)
+        entry = self._providers.get(provider_name)
+        if not entry:
+            return None
         if event not in entry.events:
             return None
         _, event_cls = entry.events[event]