The answer to 'electrical meter not working' is that the most common causes are a faulty meter, loose connections, or a problem with the electrical service. Symptoms may include a meter that displays no reading, a flickering or inconsistent display, or an error message. Solutions can range from tightening connections to replacing the meter or calling an electrician.
If the meter is not registering any usage at all, this could indicate a problem with the main service panel or the utility connection. This is best handled by a licensed electrician who can properly diagnose and repair the issue. Attempting to fix the meter yourself could be unsafe and may even result in further damage.