Forum Error After Upgrading to BP 1.2.4.1

Today I upgraded to the newest BP Daily and then upgraded from BP 1.2.3 to 1.2.4.1 and I'm getting an error message on the group forum individual topics:

Fatal error: Call to undefined function bp_the_topic_post_css_class() in /home/housings/public_html/wp-content/themes/bp-daily/groups/single/forum/topic.php on line 33

Line 33 is:

<li id="post-<?php bp_the_topic_post_id() ?>" class="<?php bp_the_topic_post_css_class() ?>">

I'm on MU 2.9.2. Any thoughts?