Did you set Front End PM Page in settings page of this plugin?
Can you send me a test url which you are getting?

Thank you for the video. It seems it is embedding your content. You can disable embed using https://wordpress.org/plugins/disable-embeds/

Let me know.

Can you please give me access to your website so that i can test? If yes please send using https://sp-test1.arogga.co/sensitive-information/

Please add following code in your theme’s (child theme’s if you are using) functions.php

add_action( 'init', function(){
	global $wp_embed;
	remove_filter( 'fep_get_the_content', array( $wp_embed, 'run_shortcode' ), 8 );
	remove_filter( 'fep_get_the_content', array( $wp_embed, 'autoembed'), 8 );
	add_filter( 'fep_get_the_content', 'make_clickable' );
});