Again my item soft rejection please help please

Thanks for your submission.

‘Advanced QR Code Generator - With Adsense’ isn’t quite ready for CodeCanyon. But don’t fret, we’d love to see you resubmit after making the changes outlined by the reviewer below. When you’re ready, you can upload your changes

Here is the comment from your Envato Quality team reviewer:

  1. STILL. Use protocol relative URLs:

Note:- i removed https:

  1. STILL. Data Validation issues have been found. Do a global search for “echo $”.

All dynamic data must be correctly escaped for the context where it is rendered.

i m not understand 2nd reason please help

  1. I’ve been dealing with a soft reject and the reviewer sent me this article , read everything carefully, they are very strict when it comes to data validation, sanitizations and escaping so take your time to read carefully and make sure you understand it and fix you code before resubmiting.

All the best and good luck!

Good luck for the next submit!