Using camera with flash not worked

[shuklatushar777]

Model: ZE552KL
RAM: 2GB
Firmware/App Version: OPR1.170623.026.WW_Phone-15.0410.1807.75-0
Location: India
Frequency of Occurrence:
Rooted: Yes
App Name: ZenTalk
Description: Flash on camera did not work when camera is on auto,flash on and also torch not work when I used camera using with flash but I reboot or switch of the device the torch is working but when I use camera the flashlight first work and then not worked the same problem. Tell me what should I do for this