The inverter of your solar panels automatically shuts off if the voltage in your home becomes too high (above 253 volts). This is regulated by law and is part of the standards that an inverter must comply with. And that is a real shame, especially on a sunny day. There are several reasons why this can happen. For example, the electricity grid might be overloaded or there could be a technical. Your solar controller turning off repeatedly is usually due to system faults, such as overcurrent, overvoltage, low voltage, or overheating. If your controller turns off frequent y,you should measure the solar panel's output y,you should measure the solar panel's output. If an inverter keeps shutting off it is often for safety reasons.