Thank you for contacting us.
It would be great if you could replicate the issue, then access the router's WebUI, go to SYSTEM > ADMINISTRATION > TROUBLESHOOT section, download troubleshoot file from there and send it to me.
Logs in this file will help to answer what causes this issue.
Thank you in advance.
From the error, it seems the issue could be missing hardware information in routers flash memory, when I have the troubleshoot file I will be able to tell it with more detail