Why have they rejected this project in less than two hours?

I recently uploaded this new theme to Themeforest and it has been rejected in less than two hours. I can assure that the code is very clean, has been heavily tested and is very well documented.

Could you give me your sincerest opinion? I need to receive constructive criticism.
I leave the link to the main demo:

On the other hand, is there no way to improve the project and upload it again? Themeforest will not let me upload the same project again? I

Thank you very much for your help!!