Hi Christian,
Welcome to the Cayenne Community. We’re glad you’re using Cayenne and enjoying it’s capabilities. We’re going to be implementing some very cool features upcoming as well, like Arduino integration, custom code insertion, mutliple new widgets (like video streaming / picture upload), and others.
So this is a known issue with the logs we are generating. We have a fix ready and are waiting to deploy it out during one next release…sorry about this.
Linking the other post that references this too: Bug Filed on 03-14-2016: Packet type not implemented: 37
-B