[Need help] Our Laravel with React script hard rejected, and how can we improve it for resubmission?

We recently submitted our application, Kidstick, to CodeCanyon. Unfortunately, it was hard rejected within just 5 hours, with no specific reason provided, despite our best efforts to follow all the coding guidelines.

Tech Stack: Laravel + React with Laravel Vite in a single codebase.

Details:

Website URL: https://kidstick.appstick.com.bd/
Documentation: https://documentation.kidstick.appstick.com.bd/
We also included an offline Quick Start Guide and structured the uploaded files as follows:

-Kidstick
-Source Code
-kidstick
-full project
-Documentation
-OnlineDocumentation.html
-Quick Start
-src
-index.html
-Readme.text
This application represents several months of hard work and dedication. I am reaching out for help or guidance on what might have gone wrong and how to improve it for future submissions.

Your support and advice would mean a lot.

The item looks good to me, maybe a copyrighted image was used, or I can’t say anything because I can’t see the backend side, is the backend side sloppy? I don’t know what the security or performance vulnerabilities are, and the colors on the frontend side seemed very incompatible to me

Thank you for your insightful and valuable response.