The answer to 'switch circuit overload' is that a switch circuit overload is typically caused by too many devices or appliances being connected to the same circuit, drawing more power than the circuit is designed to handle. Symptoms can include flickering lights, circuit breakers tripping, or outlets not working. The solution is to reduce the load on the overloaded circuit by unplugging some devices or moving them to a different circuit.
If the overload persists or the circuit breaker keeps tripping, it's best to call a licensed electrician to inspect the wiring and make any necessary repairs or upgrades. Trying to fix a serious electrical issue on your own can be dangerous and may make the problem worse.