My project is crashing with nothing show up in the debug

On Godot 4.3 in GDscript

Working on my first 3D project. I added a mesh library, and put some on a scene. I added a character with collision and controls, no animations. Added a camera as well. The game opened and I was able move the control, and the camera moved when I moved the mouse. The camera movement wasn’t smooth at all, and the character movement wasn’t based on camera direction but I was pleased with it considering the stage I was at. I added code in attempt to fix the movement and make the camera movement more smooth.

When I opened the project after that it doesn’t open at all. It’s just a gray screen that needs to be forced closed, and I don’t see a name on the application. Looking at the game engine nothing appears in the debug at all while the application is open, or while it’s running. I need some help on how I can figure out the issue without the debug.

Is there something in your code that is running every frame that shouldn’t be? Lots of times for me, my game will crash for that reason. Seeing the code might help. (Although I’m not a 3D expert.)