I am a relative beginner at WP & really need help as I appear to now be locked out as I get this error message when trying to login into wp-admin and can get no further. I dont have the cpanel login details either unfortuntely.
Not sure exactly when the problem occurred, but having gone though a standard update to the latest version of Wordpress (v 3.5.1) I seemed, as a result, to get all sorts of things not working that I had not consciously touched. For ex. WPML language widget simply disappeared and although I managed to put it back I need to change the format. To fix these I was trying to get some code for the WPML plugin to work in the functions.php file and now I get this error message:
Cannot modify header information - headers already sent by...(output started at /homez.386/marcomou/www/wp-content/themes/marcom/functions.php:288) in /homez.386/marcomou/www/wp-includes/pluggable.php on line 876 `
How can I proceed?