What you want to ask is why the invigilator of Zhanjiang Cloud Science Examination doesn't show it. The invigilator collapsed. The reason why the invigilator of Zhanjiang Cloud Science Examination didn't show it was that the invigilator crashed, the system was stuck, and the network connection was disconnected. You can restart the invigilator, let the candidates log in again and reconnect to the network. Zhanjiang, formerly known as "Guangzhou Bay" or "Port City", is a prefecture-level city in People's Republic of China (PRC) (China), located at the southernmost tip of Chinese mainland.