Please add this code to deregister the course.js script from a specific page in your wplms-customizer.php file in wplms customizer plugin : 

add_action('wp_footer','custom_function1212',12);

function custom_function1212(){

if(is_page(2))

        wp_deregister_script( 'bp-course-js' );

}


Where "2" marked in red is the page id of the specific page.

Please add this code to deregister the course.js script from a specific Blog in your wplms-customizer.php file in wplms customizer plugin or in your other theme's child theme functions.php : 

add_action('wp_footer','custom_function1212',12);

function custom_function1212(){

if(get_current_blog_id()==2)

        wp_deregister_script( 'bp-course-js' ); 
       wp_deregister_style( 'bp-course-css' );

}


Where "2" marked in red is the blog id of the specific blog.