It depends on how the camera was created, but if CreateCamera() is called, then this can be called some time after that, on the same camera. If you are using the FPS player component, you can add this in there.
I think it might be running out of VRAM. There's a lot of lights in there, and they have their shadow map size set to 1024. I changed the default to 512 some time ago and I thought I updated this map.