Okay, here's the exact specs. I probably posted some irrelevant details, but I don't know that much about hardware. I just put in everything that I thought might be useful.
Computer model: Dell DE051
OS: Windows XP Home Edition SP3 version 5.1
Processor: Intel Celeron 3.06 GHz
RAM: 512 MB
Graphics card: Intel 82865G Graphics Controller (integrated)
Total VRAM: 96.0 MB
DirectX version: 9.0c
I think I know what might have caused the error, and I believe it's a bug in Construct. I have started another small game project, and I tried adding in a 3D box, just for fun. I got the same error as I posted earlier.
THEN, however, I removed the 3D box and the error still occured, and I believe that somehow Construct still thinks that it needs to load said object. I think I will report this to the bug tracker.