Fix MidStreamFallbackError

✅ Solution

The MidStreamFallbackError in litellm often arises when a streaming response from an initial model fails (e.g., due to content policy or network issues) and the fallback mechanism within `content_policy_fallbacks` or similar configurations encounters a problem during the stream continuation. To fix this, ensure your fallback models are also capable of streaming and that their configurations are valid; additionally, robust error handling should be implemented within the `streaming_handler` to gracefully manage exceptions during fallback streaming, preventing premature stream termination.