How to reset KNOX WARRANTY VOID is 0x1 ?

Searching Samsung modem... detected COM17
Reading phone info...
Model: SM-G955N
AP version: G955NKSU1AQL3
CSC version: G955NOKR1AQL3
CP version: G955NKOU1AQL1
Product code: LUC
Phone SN: R39J30DXHV
IMEI: NONE
Unique number: CE0217129B49403E05
Searching Samsung diag port... detected COM18
Reading phone info... error (0)
Check phone connection or KNOX WARRANTY VOID is 0x1
Done with Samsung Tool PRO v.32.4