Error while downloading files from the server. Please check your network connection or the server status.

The 400 status error in the OpenAI API, indicated by a "Bad Request" response, can be caused by several factors:

1. Invalid or Expired API Key: The API key used in the request might be incorrect, expired, or not properly configured, leading to the server being unable to authenticate the request.

2. Incorrect Request Configuration: This includes issues such as incorrect or missing headers, especially the Authorization field, or an incorrect base URL in the Axios configuration. The request might also contain invalid syntax or parameters that the server cannot understand.

3. Rate Limiting and Throttling: OpenAI has rate limits on the number of requests that can be made within a certain time frame. Exceeding these limits can result in a 400 error, although it is more commonly associated with a 429 error code. However, incorrectly handling rate limits can sometimes manifest as a 400 error due to misconfiguration[4%.

4. Invalid Request Parameters: The request might contain parameters that are not supported by the model being used. For example, specifying dimensions for a model that does not support them can lead to a 400 error.

5. Content Restrictions: The request might violate OpenAI's content policies or terms of service, such as generating images that infringe on author rights or using prohibited terms or expressions.

In your specific case, the error while downloading an image could be due to the request violating one of these constraints, such as an invalid API key, incorrect request parameters, or content restrictions.