Unable to create contract in sage intacct

[Aswiapoorva]

While creating the contracts like below
var createContract = new ContractCreate
{
ContractName = "Sample Contract",
CustomerId = "C1234",
BillToContactName = "eCapital, Inc.(CC-7009)",
ShipToContactName = "eCapital, Inc.(CC-7009)",
BeginDate = DateTime.Now,
EndDate = new DateTime(2024, 5, 22),
BillingFrequency = "Monthly",
PaymentTerm = "Net 7",
LocationId = "E-102"
};

var response = client.Execute(createContract);
I am getting the error as "Date is not valid: '04-22-2024' "