G950f Unlocking Error need help

Try to unlock with Msl but cannot unlock I try change firmware write combination but same problem need help

Searching Samsung modem... detected COM14
Reading phone info... OK
Model: SM-G950F
AP version: G950FXXU1AQDD
CSC version: G950FOXM1AQDD
CP version: G950FXXU1AQDD
Product code: XEU
Phone SN: RF8J41EVLYH
Unique number: CE03171391B6480B0C
Reading IMEI... OK
IMEI: 358793080277708
Reading SN... OK
Phone SN: RF8J41EVLY
Enter MSL: 0726314012114B2A07434A3930132C50
Bypass MSL... OK
Unlocking... error