diff --git a/litellm/proxy/hooks/parallel_request_limiter.py b/litellm/proxy/hooks/parallel_request_limiter.py
index 7af2a409c5..55ea06e74d 100644
--- a/litellm/proxy/hooks/parallel_request_limiter.py
+++ b/litellm/proxy/hooks/parallel_request_limiter.py
@@ -4,6 +4,7 @@ from datetime import datetime, timedelta
 from typing import TYPE_CHECKING, Any, List, Literal, Optional, Tuple, Union
 
 from fastapi import HTTPException
+from pydantic import BaseModel
 
 import litellm
 from litellm import ModelResponse
@@ -791,6 +792,8 @@ class _PROXY_MaxParallelRequestsHandler(CustomLogger):
                 key_tpm_limit = user_api_key_dict.tpm_limit
 
         _hidden_params = getattr(response, "_hidden_params", {}) or {}
+        if isinstance(_hidden_params, BaseModel):
+            _hidden_params = _hidden_params.model_dump()
         _additional_headers = _hidden_params.get("additional_headers", {}) or {}
         if key_remaining_rpm_limit is not None:
             _additional_headers["x-ratelimit-remaining-requests"] = (
diff --git a/litellm/proxy/proxy_server.py b/litellm/proxy/proxy_server.py
index 893ca45072..e80096522f 100644
--- a/litellm/proxy/proxy_server.py
+++ b/litellm/proxy/proxy_server.py
@@ -3574,12 +3574,11 @@ async def completion(
         await proxy_logging_obj.post_call_failure_hook(
             user_api_key_dict=user_api_key_dict, original_exception=e, request_data=data
         )
-        verbose_proxy_logger.error(
+        verbose_proxy_logger.exception(
             "litellm.proxy.proxy_server.completion(): Exception occured - {}".format(
                 str(e)
             )
         )
-        verbose_proxy_logger.debug(traceback.format_exc())
         error_msg = f"{str(e)}"
         raise ProxyException(
             message=getattr(e, "message", error_msg),