N920C Can’t Write- and Read cert

hi n920c cant write cert.
Welcome to Octoplus/Octopus Box Samsung software version 2.1.5
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To connect SM-N920C phone you have to perform the following steps:
1. Disconnect USB cable from phone.
2. Go to Menu->Settings->More->About Device.
3.Tap on "Build number" 7 times to enable developer options.
4. Go to Menu->Settings->More->Developer options.
5. Turn on "USB Debugging" option.
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Platform: Samsung Android
Selected port: COM6
Selected model: SM-N920C
Detected phone model: SM-N920C
Firmware compiled date: Tue Nov 17 19:30:57 KST 2015
PDA version: N920CXXU2AOK6
CSC version: N920COJV2AOJ3
SW version: N920CXXU2AOK5
Phone SN: RF1D45EJGGR
Android version: 5.1.1 (LMY47X)
Checking Root:
Phone is Rooted.
Reading security backup, please wait…
Backup saved as C:\Program Files (x86)\Octoplus\Octoplus_Samsung\BACKUP\Security-SM-N920C-Unknown25-12-2015_22-06-12-.asec file
Deactivating MSL…
Executing exploit…
Executing exploit failed
Reading Certificate failed
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Platform: Samsung Android
Selected port: COM6
Selected model: SM-N920C
Selected file must be *.cert
Writing Certificate failed
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Platform: Samsung Android
Selected port: COM6
Selected model: SM-N920C
Selected file: F:\CERT\muslum ve babam note 5 gold\SM-N920C__RF8G72K74HP.cert
Detected phone model: SM-N920C
Firmware compiled date: Tue Nov 17 19:30:57 KST 2015
PDA version: N920CXXU2AOK6
CSC version: N920COJV2AOJ3
SW version: N920CXXU2AOK5
Phone SN: RF1D45EJGGR
Android version: 5.1.1 (LMY47X)
Checking Root:
Phone is Rooted.
Reading security backup, please wait…
Backup saved as C:\Program Files (x86)\Octoplus\Octoplus_Samsung\BACKUP\Security-SM-N920C-Unknown25-12-2015_22-09-08-.asec file
Checking Certificate file…
Certificate file successfully checked
Deactivating MSL…
Executing exploit…
Executing exploit failed
Writing Certificate failed
Please put the phone into Download Mode and connect USB cable.
To put SM-N920C into Download Mode, You have to perform the following steps:
1. Reconnect the battery.
2. Press and hold "Volume-" + "Home" + "Power ON" keys.
3. When phone turns on, press "Volume+" key.
Operation was canceled
Reading PIT canceled.
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Platform: Samsung Android
Selected port: COM6
Selected model: SM-N920C
Detected phone model: SM-N920C
Firmware compiled date: Tue Nov 17 19:30:57 KST 2015
PDA version: N920CXXU2AOK6
CSC version: N920COJV2AOJ3
SW version: N920CXXU2AOK5
Phone SN: RF1D45EJGGR
Android version: 5.1.1 (LMY47X)
Checking Root:
Phone is Rooted.
Reading security backup, please wait…
Backup saved as C:\Program Files (x86)\Octoplus\Octoplus_Samsung\BACKUP\Security-SM-N920C-Unknown25-12-2015_22-19-08-.asec file
Deactivating MSL…
Executing exploit…
Executing exploit failed
Read codes failed
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Platform: Samsung Android
Selected port: COM6
Selected model: SM-A800F
Proper android device not found. Make shure that "USB debug" option on the device is turned on.
Reading Certificate failed
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Platform: Samsung Android
Selected port: COM6
Selected model: SM-A800F
Proper android device not found. Make shure that "USB debug" option on the device is turned on.
Reading Certificate failed
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Platform: Samsung Android
Selected port: COM6
Selected model: SM-A800F
Warning: Selected model (SM-A800F) differs from the detected one (SM-N920C)!
If you want select (SM-N920C) as (SM-A800F) model, please check "manual select".
Reading Certificate failed
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Platform: Samsung Android
Selected port: COM6
Selected model: SM-N920C
Detected phone model: SM-N920C
Firmware compiled date: Tue Nov 17 19:30:57 KST 2015
PDA version: N920CXXU2AOK6
CSC version: N920COJV2AOJ3
SW version: N920CXXU2AOK5
Phone SN: RF1D45EJGGR
Android version: 5.1.1 (LMY47X)
Checking Root:
Phone is Rooted.
Reading security backup, please wait…
Backup saved as C:\Program Files (x86)\Octoplus\Octoplus_Samsung\BACKUP\Security-SM-N920C-Unknown25-12-2015_22-35-50-.asec file
Deactivating MSL…
Executing exploit…
Executing exploit failed
Reading Certificate failed

logx indir logx.rar

here is logx files Please touch İNDİR button.