After searching for my specific fatal error I could not find a solution to the following:
Fatal error: Call to undefined function list_category_posts() in /home/affil129/public_html/wp-content/themes/multi-traffic-warrior-theme/sidebar.php on line 21.
All of this happened after I upgraded. I also did not backup any of my files before taking this action.
My site disappeared and I am not sure what to do. I am a newbie and I am sorry if I sound rather inane, but please help.
Thank you in advance