Visual Editor Not Available On Sub-domain

I was given the following code for functions.php to make visual editor available.

// Begin - Forums Visual Editor
function bbp_enable_visual_editor( $args = array() ) {
$args['tinymce'] = true;
$args['teeny'] = false;
return $args;
add_filter( 'bbp_after_get_the_content_parse_args', 'bbp_enable_visual_editor' );
// End - Forums Visual Editor

It works fantastically on the main website. See screenshot 1.
But on the dating service forum, not only does it now show the editor, you can't type anything.

See screenshot 2.
Support access is granted.
Thank you.