rss feed help please
 

whenever we try an rss feed we get these messages. what am i doing wrong or what do i need to do to fix, recently upgraded to 3.8.3 here is the messages i get

Warning: curl_exec() has been disabled for security reasons in [path]/includes/class_rss_poster.php on line 80

Warning: Unable to fetch RSS Feed in [path]/includes/class_rss_poster.php on line 231

site i am trying to get it to work on is stockmarketcats.com.
thank you