Item got Rejected, Don't know why? Can anyone here help me to figure it out?

I had made the user crud system with React, Node and MySQl using sequelize.js ORM. With role based authentication and authorization to make it different from other apps I also implemented sql table creation and droping system from frontennd for the user. I didn’t find any React/Node project has this feature here.
So why envato is rejecting this app by saying ‘’ 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. ".!
It will be great help If anyone can check this demo and help me to understand the problem!
Demo Link :
admin login –
username : admin ; password : admin#123