Apps lost permissions, can’t allow them in settings

I got randomly singed out of my apps overnight and there was no IOS update done. When I click on an app like Snapchat, it sees I need to allow camera permissions to proceed, I click allow and it’ll take me to settings to enable it but there’s is no option to turn on camera permissions. Same thing happens with Spotify where it asks me to turn on permissions but doesn’t show me the option in settings. I can’t access many of my apps now, please help fix