Hello, please , I face a php error at my wordpress blog , I can't login to my Admin CP , and I got this message : Warning: Cannot modify header information - headers already sent by (output started at /home/txe/public_html/adham/wp-content/themes/bueno/functions.php:1) in /home/txe/public_html/adham/wp-includes/pluggable.php on line 890 can you help me plz ? thanks
did you recently add anything to that file? Its possible that there is white space or some characters being output around php open and closing tags. Remove everything and slowly add it to see where the problem is.
I can see that it is your custom files that has been changed. Please FTP and look at /wp-content/themes/bueno/functions.php The error means that something has been printed on the screen before the header procedures has been started. It should not happen, and as WWSD states it could be a white space. Also it could be that somewhere in functions.php or related files, there is something that gets printed or there is a PHP error. You will need to debug this.