Hi there, ChadBab.
It looks as if the camera flash/flashlight on your iPhone 5s aren't working after you updated to iOS 11.2.6. I'm happy to help.
Get help with the camera on your iPhone, iPad, or iPod touch
Your flash isn't working
Use Control Center to test the LED flash. Turn the flashlight off and on. If the LED flash doesn't work as a flashlight, contact Apple Support.
Take care!