cpu cache L0 errors

HWinfo64 is reporting hardware errors as cpu cache L0 errors. I can not find any information on what LO errors are or what they indicate other than unstable overclock. what info would you guys need to help solve these errors.

MD asus maximus x formula 
CPU 8700k

OC 4.9
adaptive vcore 1.225v
off set +0.025v
ram corsair platinum rog certified 3200 roc profile 3333mhz (xmp profile 3200)
ram 1.35v

thank you