Service Disappears on Xiaomi Reboot

Whenever I restart my Xiaomi phone, the network mysteriously vanishes, leaving me with a frustrating "No Service" message. The network usually takes 2-3 days to come back. Whenever there's an urgent situation, the network mysteriously vanishes and fails to come back. I need a solution. There seems to be a problem with Google Maps as it is not functioning correctly. Despite detecting the location, the navigation fails to direct to the desired destination and remains stagnant, displaying the message "Location Not Found."