Naming Service crashes when it tries to read a node that does not exist

[MoeweX]

Log before crash:
DEBUG [16:27:32, 849] communication.AbstractReceiver - Received nodeID: N2
DEBUG [16:27:32, 849] communication.AbstractReceiver - Received message
DEBUG [16:27:33, 088] communication.AbstractReceiver - Received complete message, configID: N2
DEBUG [16:27:33, 088] communication.NamespaceReceiver - Interpreting message.
DEBUG [16:27:33, 272] namespace.Node - Reading node N2
DEBUG [16:27:33, 273] namespace.SystemEntity - Node N2 doesn't exist
ERROR [16:27:33, 275] model.JSONable - Could not translate json to model.config.NodeConfig
ERROR [16:27:33, 275] model.JSONable -

Problem occurs, when I send a message from a node that has not been recognized by the naming service before.