This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms._
[InvalidOperationException: This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms.] 
System.Security.Cryptography.MD5CryptoServiceProvider..ctor() +5302148 [TargetInvocationException: Exception has been thrown by the target of an invocation.] 
System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) +0 
System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) +289 
System.Security.Cryptography.CryptoConfig.CreateFromName(String name, Object[] args) +888 
System.Security.Cryptography.MD5.Create() +22 MongoDB.Bson.ObjectId.GetMachineHash() +39 
MongoDB.Bson.ObjectId..cctor() +54 [TypeInitializationException: The type initializer for 'MongoDB.Bson.ObjectId' threw an exception.] 
MongoDB.Bson.ObjectId.get_Empty()