Cause
reference_date is not a valid calendar date YYYY-MM-DD.
What to do
Send a valid calendar date.
application/problem+json
{
"type": "https://masnet.com/developers/errors/invalid_date",
"title": "Invalid date",
"status": 422,
"detail": "...",
"code": "invalid_date",
"correlation_id": "..."
}