Assuming your hardware is functioning correctly, based on your current situation, firstly, the Raspberry Pi is not properly connected to the server my.farm.bot, and secondly, there is no connection between the Raspberry Pi and the driver board.
If it was working fine before and suddenly stopped working, you can also check the SD card, or try a different SD card.
The Farmbot went offline again after a few hours, and rebooting the Farmbot did not solve the problem. I tested the voltage on the Raspberry Pi GPIO pins and the reading is around 4.8V.