BuddyPress.org

Hi,
This is my first post, it’s exploratory. I’m hoping to find help with regard to a BuddyPress/Rehub install we are contemplating.
We want to setup free and paid members. Paid member’s products visible to all members.
So far straightforward, I hope, but where things change is that we want free member’s product to be visible only to their friends – across all product display elements, including profile page, search, directory, etc.
I have read a little about the friends_check_friendship function and believe this can be done. Initially, I’m hoping to learn from anyone familiar with a BuddyPress/Rehub site if they imagine that creating this change to free member product visibility would be an extensive, reasonable or easy effort?
Thank you in advance for any advice.
1 – WordPress 5.2 running
2 – Directory
3 – subdirectory
4 – ?
5 – Yes
6 – BuddyPress Ver 4.3.0
7 – No
8 – Akismet Anti-Spam, Easy WP SMTP, Health Check & Troubleshooting. Wordfence.
9 – Standard
10 – Twenty Seventeen, plan to use REHUB.
11 – No
12 – No
13 – No
14 – None
15 – IONOS
16 – Lunix, Apache
17 – Plane to use REHUB
18 – No
19 – No

Software used:
BuddyPress 4.3.0
WordPress 5.2

When I’m logged-in I click to my icon on the upper-right corner and shows me the community menu (http://www.studiomark.net/off/cei/screen1.png); when I click on a element (Activity / Messages / Notifications / Settings) it brings me to a blank page with some layout and content issues (http://www.studiomark.net/off/cei/screen2.png). How can I fix this?

The link of my site is shown in the previous links

Thanks,
Jakob

I would like to replace some text with photo in Buddypress welcome email. I’m new to WordPress and filter.

<?php
do_action( 'bp_before_email_header' );
echo bp_get_option( 'blogname' );
do_action( 'bp_after_email_header' );
?>

I add a code on function.php like this:

add_action( 'bp_before_email_header', 'add_logo');
function add_logo() {
    echo '<img src="photo url"';
}

There’s a photo in email header, however, I would like to remove the text bp_get_option( ‘blogname’ ); If there’s no apply filter, I can not modify it without editing it directly? How can I do that?

Thank you for your help!