a800f always patch certificate error

Operation: Patch Certificate
Selected model: SM-A800F/DS
Software version: 24.4

Waiting ADB device… OK
Reading phone info…
Model: SM-A800F
Android version: 5.1.1
Product code: SM-A800FZWEKSA
Phone version: A800FXXU1AOH4
PDA version: A800FXXU1AOH4
CSC version: A800FOJV1AOH4
CSC country code: KSA
CSC sales code: KSA
HW version: MP 0.500
Phone S/N: R58G91QF62W
Modem board: SHANNON333
RF cal date: 20150921
IMEI:
Checking Super user right… true
Initializating zTool… OK
Running zTool, please wait… error (11.1)

Done with Samsung Tool PRO v.24.4