I do have Intel Rapid Storage Technology (v 18.104.22.1684) installed, and am using it to accelerate my system drive. But I don't have any Optane memory. I have two SSD drives in the system, a 128Gb Intel SSD which is being used to accelerate my WD 640 HD, and a Sabrent NVMe PCIe M.2 256Gb SSD. This has been installed as a gaming drive for a couple of months with no changes, but the error just started popping up yesterday. What could be causing this?