Cannot modify header information
By Hmmm Borg, 3 years ago. Last reply by Andrew Misplon, 3 years ago
Hello, I am getting the following warning when clicking on Appearance -> Customize; Warning: Cannot modify header information – headers already set by (output start at …site-origin-panelstpljs-templates.php:113) in …wp-admincustomize.php on line 126 What is this error and how can I resolve it?