Soft Reject Codecanyon - item files read as downloadable file

We got this feedback from reviewer like this 2 times

“The problem is that the files you’re uploading can’t be put into our server. It’s being read as a downloadable file. Please make sure you’re uploading the correct version of the admin panel files and make sure it’s an installable file.”

Anyone know how to make our files become not downloadable file ?
We include android project and ci4 project in item file