Please tell us some basic information before asking for help:
Model Name: Zenfone 5z
Firmware Version: ww_22.214.171.124
Rooted or not: Not
Frequency of Occurrence:
APP Name & APP Version (If your issue relates to the app):
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.