Quality Standard - Item is rejected (HELP)

Hello, there

I’m new to the Envato market. I submitted my script on Codecanyon and it got rejected for standard quality. I have no idea about what the quality standard actually means. I went through several topics and found that quality standard is something to do with our code cleanness or maybe I am wrong. Please anyone can help me explain what quality standard is actually. Thanks

Demo of the script I submitted.

Have you seen this? https://help.author.envato.com/hc/en-us/articles/360000536823-Common-Rejection-Factors-for-Code-Items