The answer to 'electrical panel not working' is that the most common causes are a tripped circuit breaker, a faulty circuit breaker, or a problem with the main service panel. Symptoms may include lights or appliances not working, burning smells, or a completely dark panel. Solutions can include resetting a tripped breaker, replacing a faulty breaker, or having an electrician inspect and repair the main electrical panel.
It's important to note that working on electrical systems can be dangerous, so it's generally best to call a licensed electrician, especially for any issues with the main service panel. Homeowners should only attempt basic troubleshooting like resetting a tripped breaker, and should not try to repair or replace the main electrical panel themselves.