Black screen and crash

edited September 2020 in ZenFone 4 Series
ZF Model: ZC554KL
RAM: 3G
Firmware/APP Version: 15.2016.1902.507
Frequency of Occurrence: Everytime
Rooted: No
APP Name: Camera

When i open the camera app it turns black screen either rear or front camera,then it pop up error shows theres other app using the camera after that it turns off direct. Even remove data and cache or reboot shows the same problems.
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