Reply To: The package could not be installed. The theme is missing the style.css styleshee

I bought the package Education Zone Pro & Education Zone Pro Posttype, however WordPress does not allow me to upload the Education Zone Pro Posttype zip file. In order to run the demo importer the following is needed “Upload and Activate Educational Zone Pro Posttype,Woocommerce Plugin and Contact Form 7 plugin then run demo importer to display demo contents”. I need help regarding this issue about uploading the Zone Pro Posttype.