Trouble Creating Ad Categories
When I go to create any ad categories I get an error at the top.
Warning: Cannot modify header information - headers already sent by (output started at /home/content/18/11474418/html/wp-content/themes/classipress/includes/theme-functions.php:2836) in /home/content/18/11474418/html/wp-includes/class-wp-ajax-response.php on line 129
Any suggestions on how to fix this? Or any suggestions on what I might have done to screw it up?
Thanks in advance