My phone is a lg tribute 2 and i have this error message when i open my camera. It either black screens or says cannot connect to camera. This has happened before and i have forced stopped, restarted my phone, and pulled battery, and factory reset it. And that worked but now the problem has came back. What can i do to fix this issue without having to buy a new phone if that is possible? And how can i prevent it from happening again. My phone is not rooted either.