diff --git a/grpc_publisher_service.py b/grpc_publisher_service.py
index 6c42f21..2a9b4e8 100644
--- a/grpc_publisher_service.py
+++ b/grpc_publisher_service.py
@@ -74,7 +74,7 @@ def handle_create_grpc_error_response(
         """
         user_msg = user_msg or str(error)
 
-        if error_type == "UNKNOWN":
+        if error_type == "UNKNOWN" and isinstance(error, Exception):
             traceback.print_exception(type(error), error, error.__traceback__)
             if send_to_sentry:
                 sentry_sdk.capture_exception(error)
diff --git a/sentry_config.py b/sentry_config.py
index 224782a..0da2c00 100644
--- a/sentry_config.py
+++ b/sentry_config.py
@@ -23,6 +23,7 @@ def initialize_sentry():
             get_configs("SENTRY_PROFILES_SAMPLE_RATE", default_value=1.0)
         ),
         integrations=[GRPCIntegration()],
+        enable_tracing=True,
     )
 
     sentry_sdk.set_tag("project", "Publisher")