What are your specs? I downloaded your model and it rendered in 2 minutes after I changed the settings back to default. I noticed your Dynamic memory limit was set to 10,000. Don't do that. Im thinking that might have been the problem. Leave it as a default setting, or set it to 1024, 2048, or 3072. This is how you allocate your ram for a rendering to prevent crashes. The lower the number the slower the render (on larger jobs), but it also makes the rendering process more stable.