fix: Correct flow retrieval by endpoint name instead of flow name

src/backend/base/langflow/helpers/flow.py

@@ -251,7 +251,7 @@ def get_flow_by_id_or_endpoint_name(
         flow = db.get(Flow, flow_id)
     except ValueError:
         endpoint_name = flow_id_or_name
-        stmt = select(Flow).where(Flow.name == endpoint_name)
+        stmt = select(Flow).where(Flow.endpoint_name == endpoint_name)
         if user_id:
             stmt = stmt.where(Flow.user_id == user_id)
         flow = db.exec(stmt).first()