Please tell us some basic information before asking for help:
Model Name: ROG Phone 3
Firmware Version: 17.0823.2012.122
Rooted or not: not
Frequency of Occurrence: first time
APP Name & APP Version (If your issue relates to the app): Camera - 220.127.116.11_201203
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.