Seeking Feedback on Newly Developed Learning Management System for CodeCanyon Publication

I have developed a new learning management system to publish on CodeCanyon. Can anyone help me check and confirm whether its quality meets the standards for publication on CodeCanyon?

App link is

Admin panel

User: admin@example.com
Password: 11111111

Student panel

User: student@example.com
Password: 11111111

Instructor panel

User: teacher@example.com
Password: 11111111

Generally this looks pretty good.

I am not sure about what the market suitability/sales potential for this type of item is given the giant market leader software and platforms already in the public domain.

@devsteed

On desktop there are various issues - and sadly it is late in the evening now for me to reply properly.

The left sidebar nav is all messed up when you click on some links

And I cannot see any settings for example SMTP or mailer settings …