DRK fix error

Platform: Samsung Android
Selected port: COM1032
Selected model: SM-G920W8
Detected phone model: SM-G920W8
Firmware compiled date: Fri Mar 25 16:23:06 KST 2016
PDA version: G920W8VLU3CPC8
CSC version: G920W8OYA3CPC8
SW version: G920W8VLU3CPC8
Phone SN: RF8G410TN3
Android version: 6.0.1 (MMB29K)
Country: CANADA
HW platform: exynos5
HW Chip: exynos7420
HW Modem: SHANNON333
Codename: zerofltebmc
Checking Root:
Phone is Rooted.
Initializing exploit…
Executing exploit…
error 0x00000001!
DRK fixing failed!
Performed by 2.2.6 software version

Please help!