Ask the photographer for help. How is it that my card camera can't focus in a very dark environment? As long as the light is bad, it is always out of focus. like this

The shutter speed is about 3/ 1, the aperture is maximized, the sensitivity is higher, the center is focused, and the focus is given to the light spot of the lighter.

If it still doesn't work, turn on the light. It's too dark, even if it's filmed, it only has two effects.

Very bright, especially empty. Otherwise, the noise is particularly loud.

The ambient light is too dim, and your camera aperture is not enough.

In short, taking pictures must rely on ambient light.