Hello, this is covered in the updated documentation,
https://yal.cc/r/17/gmlive/#error-debug-create
This isn't something GMLive-specific, but rather a GM bug that happens on some computers when your game has "enough" code in it, which is easier triggered by adding 900KB worth of GML to your project.
I'm not sure if I can do anything about this on GMLive's side, since even minifying the source code wouldn't help much.