My first NodeJs script got rejected

I worked so hard on this to make it working and customizable through the admin panel.

Username: demo
password: demoadmin

I had already started working on the next item but lost motivation after getting the first item rejected. I am confused about what to do.
Any help would be appreciated

Isn’t it illegal to download Facebook videos which are not yours? Especially from pages or groups?

I am not sure but there already some php version and android version of facebook video downloader in codecanyon.

that file is 2 years old and I thought that they were cracking down on this type of thing now

These are new