someone help with samsung n950f patch fail

Chimera Mobile Phone Utility version: 20.85.1338 @ 2019-04-19
Printing phone history

Patch Certificate
4/18/2019
6:15:28
PM

Patch Certificate
4/18/2019
6:14:26
PM

Knoxguard Unlock
4/18/2019
6:12:51
PM

Patch Certificate
4/18/2019
5:45:10
PM

Patch Certificate
4/18/2019
5:39:55
PM

Patch certificate started
Gathering phone info...
Collecting information. Be patient! Do NOT disconnect the phone!
Model: SM-N950F
Sales Code: ECT
Country Code: Nigeria
Timezone: Africa/Lagos
Android Version: 8.0.0 [R16NW] [SDK 26]
Build Date: Mon Oct 1 11:02:44 KST 2018
PDA Version: N950FXXS5CRJ1 [october 2018, rev1]
Phone Version: N950FXXU5CRHA [august 2018, revA]
CSC Version: N950FOXM5CRHA [august 2018, revA]
Product Code: ECT
HIDSw Version: N950FXXS5CRJ1/N950FOXM5CRHA/N950FXXU5CRHA/N950FXXS5CRJ1
Board Platform: EXYNOS5
Modem Platform: SHANNON355
Serial Number: R58JA5B0TBM
Imei: 35662323zzzzzzz
Unique Number: 988A5746374B384C3830
Connections: AT,MTP
Battery Status: 3.88V (50%)
Network Type: GSM
SIM Status: READY,ABSENT
Multisim Config: DSDS
Knox Version: v30
Warranty Bit: 1
Security Patch: 2018-10-01
Data Encryption State: unsupported
Preparing...
Checking current patchcert.
Checking modem.
Checking root.
The phone is rooted by: 2.82:SUPERSU
Checking boot image. Be patient! Do NOT disconnect the phone!
Could not read the boot image for analysis. Maybe the phone was wrongly rooted.
Finished at local time: [04.19.19 12:53:32]
WorkID: 57516384