Hi,
We are able to login through wordpress.com but unable to login to your site https://myschoolofrock.in/wp-login.php
Getting this error http://:https://prnt.sc/tddx6z. from this url : https://myschoolofrock.in/wp-login.php
Please check and let us know about details.
We need Your admin access and course,unit url where you are using the s3 shortcode.
Also you have to set unit type as video.
Working : s3 shortcode parsed and provides s3 url which is used in app.