[Gigi-The-Beast]

You must use Streamer_AppendArrayData somewhere as it prints that the ID is invalid.
That happended to me when I manipulated with some objects, so when I looped through all objects and passed invalid ones to the funcion, that error showed. The solution for me was to first check if object vas valid.

You should find that funcion somewhere in your mode and debug the data that you pass to it.