By default, BuddyBoss disables the link in the logo when BuddyBoss Platform – Private Network is enabled. To add the hyperlink to the logo, please follow the steps below:
1. Go to Appearance > Theme Editor.
2. Under Select theme to edit, choose (BuddyBoss Child/whatever theme is active), then click Select.
3. Below Theme Files, select Theme Functions (functions.php).4. Append the code just before the closing PHP tag “?>”:
// The "login_headerurl" filter is used to filter the URL of the logo on the WordPress login page.
// By default, this logo links to the WordPress site.
add_filter('login_headerurl','crunchify_login_link');
function crunchify_login_link() {
// Change Logo link if you want user to redirect to other link.
return "https://page.url/";
}

5. Click Update File to save the changes.