samsung sm-j250f unlock problame

Welcome to Octoplus Box Samsung software version 2.6.9
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Connecting to server...
Username: milxwa9
Authorizing...
Checking balance...
Your balance: 350 credits.
Performed by 2.6.9 Software version.
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Platform: Samsung Android
Selected port: COM16
Selected model: SM-J250F
Operation: Read Codes
"Devices with Unlock App (branded to T-Mobile, MetroPCS, etc.) are not supported!

Make sure device requests to enter unlock code and only then perform “Read Codes” operation!"

Continue?
Searching for a phone. Please wait...
Detected phone model: SM-J250F
Firmware compiled date: Tue Apr 17 18:07:20 KST 2018
PDA version: J250FXXU2ARD3
CSC version: J250FOJV2ARD4
SW version: J250FXXU2ARD3
Phone SN: RV8K50TQXHA
Android version: 7.1.1 (NMF26X)
Sales code: KSA
Country: KSA
HW platform: msm8937
HW Chip: MSM8937
HW Modem: MSM8917
Security patch level: 2018-04-01
SIM 1 status: absent
SIM 2 status: absent
Codename: j2y18ltejx
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Connecting to server ..
Username: milxwa9
Connect to server successfull.
Checking smart card...
Smart card successfully checked.
Your balance: 350 credits.
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Rebooting phone
Searching for a phone. Please wait...OK
Rebooting phone
Searching for a phone. Please wait...OK
Rebooting phone in Upload Mode...
Searching for a phone. Please wait...OK
Reading data...OK
Searching for signatures...OK
Sending request...OK
Calculating codes. Please wait...
FREEZE: not found
NET LOCK: not found
SUB LOCK: not found
SP LOCK: not found
CP LOCK: not found
Performed by 2.6.9 Software version.

how to fix and plz refund credit..