it fails on the [completions] or [chat/completions] for JSONDecodeError

[Davidcake]

after run [ litellm --model ollama/xxx], it works fine on the swagger URL.
and it works well on [GET /models].
but it fails on the [completions] or [chat/completions]. it

{
"error": {
"message": "Expecting value: line 1 column 1 (char 0)\n\nTraceback (most recent call last):\n File "/home/ubuntu/.local/lib/python3.8/site-packages/litellm/proxy/proxy_server.py", line 1456, in completion\n data = json.loads(body_str)\n File "/usr/lib/python3.8/json/init.py", line 357, in loads\n return _default_decoder.decode(s)\n File "/usr/lib/python3.8/json/decoder.py", line 337, in decode\n obj, end = self.raw_decode(s, idx=_w(s, 0).end())\n File "/usr/lib/python3.8/json/decoder.py", line 355, in raw_decode\n raise JSONDecodeError("Expecting value", s, err.value) from None\njson.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)\n",
"type": "None",
"param": "None",
"code": 500
}
}