My galaxy s3 crashes everytime i open my camera or snapchat?

i just got my samsung galaxy s3 back from the shop after i damaged the screen. When i started using it i tried to open snapchat and take pictures and it just turned off. When i tried to turn it back on it wouldn't boot for the first few times and when it did come on the battery was completely drained. The same thing happens when i use the built in camera app and it has started happening with other apps too but not as much as when try to take pictures. I really don't wanna have to take it back to the repair shop because of the bad experience (they lost it for 2 months) and I can't afford more repairs. What can i do?
Added (1). i already factory reset my device and tried putting it in safe mode it still shuts itself off

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