My device booted successfully.
The first reason is that I attached the “Raspberry Pi CM4” to the “Adapter for RaspberryPi CM4 computing module to ClockworkPI v3.14” based only on the illustration in the “Assembly Guidelines”, which is not correct.
I noticed the mistake by referring to the datasheet of the “Raspberry Pi CM4” and checking the pin numbers.
The second cause was that the “Adapter for RaspberryPi CM4 computing module to ClockworkPI v3.14” was not inserted into the socket on the mainboard side, causing a bad connection. Insufficient insertion means that the golden part of the pin is slightly visible, and the lock works even in this state, so I did not notice it until later.
Anyway, since it booted successfully, you may close this inquiry.
Thank you very much.