This exception occurs when a transfer fails because their is not enough balance to perform the transfer

System.Object
  System.Exception
    Iota.Lib.CSharp.Api.Exception.NotEnoughBalanceException
Namespace: Iota.Lib.CSharp.Api.Exception
Assembly: IotaApi (in IotaApi.dll) Version: 0.9.0.24212 (1.0.0.0)

C#

public class NotEnoughBalanceException : Exception

	Name	Description
	NotEnoughBalanceException()	Initializes a new instance of the NotEnoughBalanceException class.
	NotEnoughBalanceException(Int64)	Initializes a new instance of the NotEnoughBalanceException class.

Iota.Lib.CSharp.Api.Exception Namespace
System.Exception