How to restart 5A

The 5A Debian system is installed in the SD card. After clicking to restart the system, only the green light is on and the blue light is not on, and the system will not start up. I must power off and then power on again to start the machine. May I ask everyone, is this normal?

I think I have found the cause, it should be a power supply issue. My keyboard can light up, and when I restart with the keyboard connected, it will not start properly. When I unplug the keyboard and restart, the system can restart normally.