[Galaxy J7] Android wont connect to sever

[AC Question]

I have a samsung j7 (rooted). Its been two weeks since i have rooted the phone and it was working perfectly fine until now two days back. My android phone cannot connect to google or playstore. Nor i can'not add up my gmail account too. Please help.

 

[B. Diddy]

Welcome to Android Central! Is it running a custom ROM, or the stock ROM? Does this happen on both wi-fi and mobile data?