fix exception provider not known

litellm/utils.py

@@ -5810,6 +5810,18 @@ def exception_type(
                 _model_group = _metadata.get("model_group")
                 _deployment = _metadata.get("deployment")
                 extra_information = f"\nModel: {model}"
+
+                exception_provider = "Unknown"
+                if (
+                    isinstance(custom_llm_provider, str)
+                    and len(custom_llm_provider) > 0
+                ):
+                    exception_provider = (
+                        custom_llm_provider[0].upper()
+                        + custom_llm_provider[1:]
+                        + "Exception"
+                    )
+
                 if _api_base:
                     extra_information += f"\nAPI Base: `{_api_base}`"
                 if (