u/sweetpotato2304

I have an Acer Aspire 7 R9F8 laptop with a 512gb Hynix NVMe. I recently had a black screen of death with "Memory Management" error. After booting up, it shows "No Bootable Device". I kept on shutting it down and booting again but the same error shows up. I let it sit (powered off) for 10minutes before trying again. This time the laptop booted up normally again. This has happened for like 5 times now in 3 months. What could be the cause? I'm suspecting it is a failing nvme but I'm not sure why it works again after waiting some time.