GS7E Camera Failing/Help With Stock Recovery

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I bought my Galaxy S7 Edge about a month ago and I've been loving it, however today I went to use a camera app from the play store (that I've been using fine for almost as long as I've had the phone) and it failed to open.
No error message.

I thought that was weird so I opened Snapchat.
Camera wouldn't load.
I then opened the default camera app and I got a simple "Camera failed" error.

I did some reading and couldn't find much, but read some suggestions to wipe the system and dalvik caches from recovery. I would do this if I were capable, but I currently have TWRP recovery, which normally wouldn't be a problem, but TWRP currently can't get permission to write anything unless I wipe my phone, which I'm far from ready to do.

So I essentially have two questions here:
Most pressing, how could I go about getting my camera to work?
If only through recovery, how do I return to stock recovery so that I'm actually capable of doing anything in it?
 
I'm OP, I made this and forgot to log in, but I think it's pertinent to add that I just tried uninstalling the camera app and nothing changed. Also my model is the SM-G935W8 if that's relevant to anything.
 
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