diff --git a/api/core/ops/base_trace_instance.py b/api/core/ops/base_trace_instance.py
index 04b46d67a8..8c081ae225 100644
--- a/api/core/ops/base_trace_instance.py
+++ b/api/core/ops/base_trace_instance.py
@@ -14,10 +14,9 @@ class BaseTraceInstance(ABC):
     Base trace instance for ops trace services
     """
 
-    @abstractmethod
     def __init__(self, trace_config: BaseTracingConfig):
         """
-        Abstract initializer for the trace instance.
+        Initializer for the trace instance.
         Distribute trace tasks by matching entities
         """
         self.trace_config = trace_config
diff --git a/api/core/ops/ops_trace_manager.py b/api/core/ops/ops_trace_manager.py
index 549e428f88..177991e645 100644
--- a/api/core/ops/ops_trace_manager.py
+++ b/api/core/ops/ops_trace_manager.py
@@ -41,8 +41,8 @@ logger = logging.getLogger(__name__)
 
 
 class OpsTraceProviderConfigMap(collections.UserDict[str, dict[str, Any]]):
-    def __getitem__(self, provider: str) -> dict[str, Any]:
-        match provider:
+    def __getitem__(self, key: str) -> dict[str, Any]:
+        match key:
             case TracingProviderEnum.LANGFUSE:
                 from core.ops.entities.config_entity import LangfuseConfig
                 from core.ops.langfuse_trace.langfuse_trace import LangFuseDataTrace
@@ -149,7 +149,7 @@ class OpsTraceProviderConfigMap(collections.UserDict[str, dict[str, Any]]):
                 }
 
             case _:
-                raise KeyError(f"Unsupported tracing provider: {provider}")
+                raise KeyError(f"Unsupported tracing provider: {key}")
 
 
 provider_config_map = OpsTraceProviderConfigMap()