g930w8 read cert failed

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Platform: Samsung Android
Selected port: COM783
Selected model: SM-G930W8
Detected phone model: SM-G930W8
Firmware compiled date: Sat Jul 2 19:06:41 KST 2016
PDA version: G930W8VLU1APG1
CSC version: G930W8OYA1APG1
SW version: G930W8VLU1APG1
Phone SN: RXXXXXXXXXN
Android version: 6.0.1 (MMB29K)
Sales code: TLS
Country: Canada
HW platform: exynos5
HW Chip: exynos8890
HW Modem: SHANNON335
Codename: heroltebmc
Checking Root:
Phone is Rooted.
Reading security backup, please wait…
Backup saved as C:\Program Files\Octoplus\Octoplus_Samsung\BACKUP\Security-SM-G930W8-Unknown20-08-2016_17-54-53-.asec file
Initializing exploit…
Executing exploit…
Exploit has been executed successfully
Reading Certificate…
Checking Certificate file…
Checking Certificate failed
Reading Certificate failed
Performed by 2.3.3 software version
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any idea?