Fix ServiceUnavailableError

✅ Solution

ServiceUnavailableError usually indicates the LLM provider is overloaded or temporarily unavailable. Implement retry logic with exponential backoff using `retry` decorator in `litellm` around the failing function calls, and/or check the LLM provider's status page to confirm an outage before retrying. You might also need to increase your rate limits or switch to a different model if the issue persists.