Get Restrict Post Types for Visitors and Specific Roles and Show Restricted Content Notice

yzc_restrict_content.php

<?php
/**
 * Get Restrict Post Types for Visitors and Specific Roles and Show Restricted Content Notice.
 */
function yzc_restrict_content( $content = null, $activity = null ) {

    // Add Forbidden post types!
    $forbidden_posts = array( 'activity_photo' );

    // Add Forbidden roles.
    $forbidden_roles = array( 'administrator' );

    if ( in_array( $activity->type, $forbidden_posts ) ) {

        // Get Current User Data.
        $user = get_userdata( bp_loggedin_user_id() );

        // Get Roles.
        $user_role = (array) $user->roles[0];

        if ( ! is_user_logged_in() || in_array( $user_role[0], $forbidden_roles ) ) {

            // Change subscription link here.
            $subscribe_link = 'https://wwww.website.com/subscribe-link-here';

            return '<div class="yzc-restricted-content"style="background: #e0e0e0; padding: 35px;"><div style="text-align: center; padding: 100px; border-radius: 5px; color: #898989; border: 2px solid #eee; "><i class="fas fa-lock" style="width: 50px; height: 50px; color: #717171; background: #eeeeee; text-align: center; border-radius: 100%; line-height: 50px;"></i></div><a href="' . $subscribe_link . '" style="display: block; background: #03A9F4; text-align: center; padding: 18px; color: #fff; font-weight: 600; font-size: 14px; border-radius: 4px; margin-top: 15px; ">SUBSCRIBE TO SEE USERS POSTS</a></div>';
        }

    }

    return $content;

}

add_filter( 'yz_activity_attachment_content', 'yzc_restrict_content', 10, 2 );

doesnt exist "yz_activity_attachment_content" filter