Samsung Galaxy S6 crash

Hello!

I have a 3-4 years old S6 and last week it...broke. It crashes apps ( Settings, Keyboard , other system aplicaitons, not just third party ones ) and it resets/shuts itself down every 3-4 min if used .

I Factory Reseted it but with no success.

I've tried to read the logchats ( got them with Android Studios ) but i am overwhelmed.

Errors: gist.github.com/poloistul11/613a9ec67e9ff93be51e8355ae48dedf

Warnings: gist.github.com/poloistul11/0b28156e90bf394ce778634b24098e9e

Verbose: gist.github.com/poloistul11/915342990cbe31a98eac1ef4795527ae

Info: gist.github.com/poloistul11/6296eb91f0d9c0282fe24c6a8f45ef88

I found logs like :

04-25 21:19:40.165 22655-23755/? E/ReflectMethod: Cannot load method: setTconUIMode [int]
04-25 21:19:40.166 22655-23755/? E/ReflectMethod: Cannot load method: setBatteryADC [class java.lang.String, boolean]
04-25 21:19:40.166 22655-23755/? E/DeviceUtil: setBatteryADC(true) is failed.



04-25 21:19:41.340 22655-22655/? E/ReflectMethod: Cannot load method: isAquired []
04-25 21:19:41.340 22655-22655/? E/ReflectMethod: Cannot load method: addExtraOption [class java.lang.String, long]
04-25 21:19:41.340 22655-22655/? E/ReflectMethod: Cannot load method: getApproximateCPUFrequency [int]
04-25 21:19:41.341 22655-22655/? E/ReflectMethod: Cannot load method: getApproximateGPUFrequency [int]
04-25 21:19:41.341 22655-22655/? E/ReflectMethod: Cannot load method: getSupportedCPUCoreNum []
04-25 21:19:41.341 22655-22655/? E/ReflectMethod: Cannot load method: getSupportedCPUFrequency []
04-25 21:19:41.341 22655-22655/? E/ReflectMethod: Cannot load method: getSupportedCPUFrequencyForSSRM []
04-25 21:19:41.341 22655-22655/? E/ReflectMethod: Cannot load method: getSupportedGPUFrequency []

Could rooting it and flashing a new rom do anything for me?
In case this is a hardware issue , can i figure it out by reading the logs?

Thanks