Ata4: SATA link down (SStatus 0 SControl 300)

Hi guys, using X86 router, no ANY sata drives, openwrt using usb flash drive, but openwrt console write, error.
build:
OpenWrt SNAPSHOT r15102-6d98c098e4 / LuCI Master git-20.332.74200-03c77da

Error:

ata4: SATA link down (SStatus 0 SControl 300)

I got this error every 44 sec!

I also got every hour or so

[ 7975.761862] ata4: COMRESET failed (errno=-32)
[ 7975.767641] ata4: reset failed (errno=-32), retrying in 8 secs

Can any1 help me solve this or just explain what is going on?