The author of shinobi system in elemental nation here, I have published new chapter but it is not shown in the app amd web page.
Update problem
same here
- Edited
divyam try to delete and publish it again.
I waited for 1 hour but still didn't show up so I tried to delete it. And wait for a moment and it work!
I hope it will work to u too
AidaHanabi long time no see you in forum sister Aida 
AidaHanabi I have done that, but it still doesn't work for me.
Then I give up...
But the new chapter got update an hour later...
TheLonerLion Good for you. Sometimes the same chapter gets posted twice as well.
Look like this problem still and will happen at anytime.
The last time because that korean spam incident. That cause almost everyone in same server with the perpetrator was banned and need contact staff for that.
But before that, I read there was someone who already had that problem too. And because he can't updated new chap he post it on wattpad.
And look like this problem maybe will happen again in future?
You could try using the scheduled chapter release, it always releases on time.