Last Active user code

Hi Guys, I need help inserting the last active user name in the topic column of this page:
https://www.mzansionline.com/forums/forum/business-forum/

I would like to eventually remove the Voices, Posts and Freshness links and just center the information under the topic column.

please see example on m page : https://www.mzansionline.com/forums/forum/business-forum/

I achieved this by editing the bbpress simple view counts as follows :

$str1 = bbp_topic_post_count();
$post_id = get_the_ID();
$count = get_post_meta( $post_id, ‘bbp_svc_viewcounts’, true );
$reply_id = bbp_get_topic_last_reply_id( $topic_id );

if (!empty($count)){
echo ‘<span class=”bbp-topic-started-by”> Posts & <b> ‘.$count.'</b> <b> ‘.$str1.’ </b> Views, </span>’;
echo bbp_topic_freshness_link();
echo ‘<span class=”bbp-topic-freshness-author”> ‘.$reply_id.’ </span>’;

Please help me to insert the last active user name in the above code.

I would like it to read ” Started by: Pashy 9 Posts & 210 Views, 1 day, 4 hours ago 121 by party

Your assistance will be much appreciated !