why has my samsung tablet showing the touchwiz has stopped working error

I have a samsung tab 3 and I have this error showing up whenever I open my facebook messenger and it says touchwiz has stooped working. Ive tried following the clear data and cache for touchwiz but that didnt work. And I desperately need help. My tablets battery life seems to be not working either it shuts down at 85% charging. Can anyone help? :(

If you check this forum you will find all sorts of devices having problem with Facebook app. Including Facebook and battery life issues. Have you tried to clear data and cache for Facebook?