Noob needs HELP!!

everytime I want to use the save editor i keep getting an error and gives me this

---------------------------
Error
---------------------------
An exception was thrown (press Ctrl+C to copy):

ProtoBuf.ProtoException: Unexpected boolean value

at ProtoBuf.ProtoReader.ReadBoolean()

at proto_18(Object , ProtoReader )

at ProtoBuf.Serializers.CompiledSerializer.ProtoBuf.S erializers.IProtoSerializer.Read(Object value, ProtoReader source)

at ProtoBuf.Meta.RuntimeTypeModel.Deserialize(Int32 key, Object value, ProtoReader source)

at ProtoBuf.ProtoReader.ReadTypedObject(Object value, Int32 key, ProtoReader reader, Type type)

at proto_2(Object , ProtoReader )

at ProtoBuf.Serializers.CompiledSerializer.ProtoBuf.S erializers.IProtoSerializer.Read(Object value, ProtoReader source)

at ProtoBuf.Meta.RuntimeTypeModel.Deserialize(Int32 key, Object value, ProtoReader source)

at ProtoBuf.Meta.TypeModel.DeserializeCore(ProtoReade r reader, Type type, Object value, Boolean noAutoCreate)

at ProtoBuf.Meta.TypeModel.Deserialize(Stream source, Object value, Type type, SerializationContext context)

at ProtoBuf.Serializer.Deserialize[T](Stream source)

at Gibbed.Borderlands2.FileFormats.SaveFile.Deseriali ze(Stream input, DeserializeSettings settings)

at Gibbed.Borderlands2.SaveEdit.ShellViewModel.<>c__D isplayClass1c.<ReadSave>b__16()

at Caliburn.Micro.Contrib.Results.DelegateResult.Exec ute(ActionExecutionContext context)
---------------------------
OK
---------------------------

Anyone know what the problem is??