The answer to 'light fixture circuit overload' is that a light fixture circuit overload is typically caused by too many lights or devices being connected to the same circuit, which can overload the circuit and cause the breaker to trip. Symptoms may include flickering or dimming lights, circuit breakers tripping frequently, or the lights not turning on at all.
To address a light fixture circuit overload, you should first try reducing the number of lights or devices on the circuit by unplugging or disconnecting some of them. If that doesn't work, you may need to have an electrician install a new circuit or upgrade the existing one to handle the additional load. Attempting to bypass or overload a circuit yourself can be dangerous and is not recommended.