Unable to enable camera and microphone for apps in iPhone

Yesterday, my apps were completely normal and allowed me to use camera and microphone. But today, when i went on snapchat, instagram, tiktok, etc., it said i needed to give permission to use camera. So i of course went to setting to enable it, but the enable button isnt showing. I tried everything, i went to safari to search, i went to privacy and security in settings, i went on apple community to see if people were having the same problem (they did), but NONE of them had a response. I really need help with this problem.🙏

[Re-Titled by Moderator]