Indeed that is a little bit better, as I know what that code represents. Though I can't tell you specifically how or where you managed to do it as I am not aware of any easy ways to accomplish that.
I don't know if you will understand what this means. [GDScript:1636] is what you get when you convert an object reference to a string in the godot engine. Data types like null, numbers, arrays, and dictionaries all convert cleanly to strings, but references to things like person objects simply produce those basically useless codes.
Edit: after a little bit of tinkering, I would guess that a typo is causing a description function to crash. Not sure of how that managed to convert to a code similar to a object reference. But you need the Debug mod.