Fix IllegalArgumentException

✅ Solution

IllegalArgumentException in Elasticsearch often arises from providing an invalid argument type or value to an API, such as incorrect data types for query parameters or unsupported values in configurations. Review the stack trace and error message to pinpoint the problematic argument; then, correct the data type, value, or configuration setting accordingly, conforming to the API's expected input. Validate inputs before passing them to Elasticsearch APIs to prevent this error.