Capture Photo in our developed iOS APP> pop up of 'Allow Camera' is coming up Randomly

hi All, We ahev developed a IOS app to capture the picture of visitors , issue is when we initiate the PICTURE Capture in our developed iOS APP> pop up of 'Allow Camera' is coming up Randomly as seen below .

We ahev given all permisisons for the APP to access the camera , but thius alert is coming randomly. Need help urgently .

Capture Photo in our developed iOS APP> pop up of 'Allow Camera' is coming up Randomly
 
 
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