Message Appears Every Second In Log

[johnzprecision]

I have a RT-AC66U router running 3.0.0.4.374.33_0 Merlin firmware the following message appears every second in the system log does anyone know what this is and how to stop it, Thanks for any help.

Nov 20 15:13:14 kernel: scsi 0:0:0:0: rejecting I/O to dead device
Nov 20 15:13:15 kernel: scsi 0:0:0:0: rejecting I/O to dead device
Nov 20 15:13:16 kernel: scsi 0:0:0:0: rejecting I/O to dead device
Nov 20 15:13:17 kernel: scsi 0:0:0:0: rejecting I/O to dead device
Nov 20 15:13:18 kernel: scsi 0:0:0:0: rejecting I/O to dead device
Nov 20 15:13:19 kernel: scsi 0:0:0:0: rejecting I/O to dead device
Nov 20 15:13:20 kernel: scsi 0:0:0:0: rejecting I/O to dead device
Nov 20 15:13:21 kernel: scsi 0:0:0:0: rejecting I/O to dead device

 

[TeHashX]

Your usb disk has errors, scan on pc