Why does my Galaxy Grand Neo I9060 turn off automatically by itself?

[AC Question]

hi! I got a problem on my Galaxy Grand Neo I9060 got turn off automatically by itself.,

I rooted my phone using Super SU, and suddenly I made a Factory reset on my phone, and after that , that is the start of getting my phone turned off and on, or it's restart automatically by itself, . is this a battery problem? please answer my concern, I really worried regarding to this issue. ,