Rejected on CodeCanyon .Whats wrong with my product? Please share your comments.

Can someone let me know why my product got rejected with below message:

Thank you for your submission. We have completed our review of “Smart Bills - Solution for stock inventory and Billing” and 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.

This product was built with latest techonologies : Angular 9 , Node.js 8 , Firebase.

Demo URL :
login id: / admin123$

Without me even logging in, I see the issues.
The background image of the login screen is not up to par, your better off using a regular background image.

Also, I see the favicon isnt up to par either.

Last, the bottom right corner where it says " [Image copyright © all-free-download]"
Remove that please and put © 2020 Smart Bills. All Rights Reserved.

I hope this helps.

Thanks for the response.

Any more comments.