What is the reason of rejection of my Item?

I submitted my product 10 days ago,
after 10 days envanto said: "unfortunately we found it isn’t at the quality standard required to move forward, and you won’t be able to re-submit this item again."

Admin panel link.
http://smartblog.baigsapp.com/demo/admin/login.php

Android App link:

play.google.com

Your Smart Blog

Your Smart Blog is the multipurpose application. This application can be used as a News App, a Personal Blog App, a Portfolio App, a Food Recipes App, a YouTube Channel App, a Your Own Video Channel App. Its content is available for registered and un-registered users but registered users can “comments”, “likes” on any post and edit “personal profile”. Push Notification can be received for both. You can use AdMob for your passive earning. Your Smart Blog application is hybrid app that is develope…

Free

any expert here, kindly tell me what is the reason of rejection of my ITEM.

and I want to ask Envato that:

What is the reason of rejection of my Item?
What is your quality requirement?
And what is the proof that my item will not be sold to anyone else?