My bootloader Isn't unlocking

[rskiron42]

Please tell us some basic information before asking for help:
Model Name: Asus Zenfone 5z
Firmware Version:100.10.107.87
Rooted or not:not rooted
Frequency of Occurrence: always
APP Name & APP Version (If your issue relates to the app): Unlocker tool latest
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
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[Christine_ASUS]

Hi rskiron42
Have you ever unlocked your device before? If you haven't unlocked your device and received the error message that you showed me, please check on your inbox and PM me your SN. Thank you.  
If you have unlocked your device before, please refer to the link below for further discussing:
https://zentalk.asus.com/en/discussion/29910/