Copy+pasting code from a forum comes with issues. Its better to construct it yourself on your site. Strumelias code may work for her site, but it may-not work for yours joanna.
Things in strumelias code that exist on her site that may cause it not to work on yours:
<h2>{jrCore_lang skin=$_conf.jrCore_active_skin id="20" default="Latest"} ..........
For strumelias site the language for her skin #20 is
Latest, but if you put that into your site and your language file wasnt exactly the same as hers you will get YOUR #20 which could be "biscuts" or "Enter your Name" or anything else.
The code that is doing the heavy lifting is {jrCore_list}
Docs: "{jrCore_list}"
https://www.jamroom.net/the-jamroom-network/documentation/jamroom-developers-guide/89/jrcore-list
and on strumelias site its
{jrCore_list module="jrAction" search1="action_module != jrFollower" order_by="_item_id numerical_desc" template="index_activity.tpl" pagebreak=60 page=$_post.p}
which is requesting the file
index_activity.tpl which exist in the currently active skin. If your skin does not have that file, you will get an error.
A safer way to go is to start with a small query then keep adding to it until you get what you want:
{jrCore_list module="jrAction"}
view the page, see how it looks, then adjust
{jrCore_list module="jrAction" search1="action_module != jrFollower" }
view the page, see how it looks, then adjust
{jrCore_list module="jrAction" search1="action_module != jrFollower" order_by="_item_id numerical_desc"}
.......
updated by @michael: 10/28/16 06:30:42PM