A way to stop camera unlocking phone ?

My phone loves to open the shutter on its own as since its so easy to open proberly 1/10 times of putting it in my pocket the camera opens up. If the shutter is open the phone is unlocked hence my problem the phone just activates everything until I notice. It seems aswell when this happens usually the phone loses all sound strangely weither its because it has been pressing pritty much every button I dont know.

The only way I can get the sound back once its happened is to turn the phone on and off so it does seem to be something to do with this issue but I cant find an option in settings to prevent it.

I cant believe sony over looked something as simple and easy to prevent what a stupid…