diff --git a/api/core/model_runtime/utils/encoders.py b/api/core/model_runtime/utils/encoders.py
index a5c11aeeba..f65339fbfc 100644
--- a/api/core/model_runtime/utils/encoders.py
+++ b/api/core/model_runtime/utils/encoders.py
@@ -151,12 +151,9 @@ def jsonable_encoder(
         return format(obj, "f")
     if isinstance(obj, dict):
         encoded_dict = {}
-        allowed_keys = set(obj.keys())
         for key, value in obj.items():
-            if (
-                (not sqlalchemy_safe or (not isinstance(key, str)) or (not key.startswith("_sa")))
-                and (value is not None or not exclude_none)
-                and key in allowed_keys
+            if (not sqlalchemy_safe or (not isinstance(key, str)) or (not key.startswith("_sa"))) and (
+                value is not None or not exclude_none
             ):
                 encoded_key = jsonable_encoder(
                     key,
diff --git a/api/core/provider_manager.py b/api/core/provider_manager.py
index 6de4f3a303..9250497d29 100644
--- a/api/core/provider_manager.py
+++ b/api/core/provider_manager.py
@@ -523,7 +523,7 @@ class ProviderManager:
                     # Init trial provider records if not exists
                     if ProviderQuotaType.TRIAL not in provider_quota_to_provider_record_dict:
                         try:
-                            # FIXME ignore the type errork, onyl TrialHostingQuota has limit need to change the logic
+                            # FIXME ignore the type error, only TrialHostingQuota has limit need to change the logic
                             new_provider_record = Provider(
                                 tenant_id=tenant_id,
                                 # TODO: Use provider name with prefix after the data migration.
diff --git a/api/core/workflow/workflow_engine_manager.py b/api/core/workflow/workflow_engine_manager.py
deleted file mode 100644
index e69de29bb2..0000000000