The answer to 'light fixture circuit overload' is that a light fixture circuit overload is typically caused by too many fixtures or devices connected to the same circuit, or a short circuit in the wiring. Symptoms may include flickering or dimming lights, circuit breakers tripping, or the fixture not working at all. Solutions can include reducing the load on the circuit, checking for and fixing any short circuits, and potentially upgrading the circuit to handle the electrical load.
If the issue is due to an overloaded circuit, you may be able to resolve it yourself by unplugging some devices or moving fixtures to a different circuit. However, if the problem is due to faulty wiring or a short circuit, it's best to call a licensed electrician to diagnose and repair the issue safely.