Title: Header error message Last modified: August 19, 2016 --- # Header error message * Resolved [motom](https://wordpress.org/support/users/motom/) * (@motom) * [17 years, 3 months ago](https://wordpress.org/support/topic/header-error-message/) * I installed a new theme Dilectio on my blog Motomarta.com * Things look good on the actual page, but I keep getting this error message when I’m in the admin side of the site: * Warning: Cannot modify header information – headers already sent by (output started at /home3/cbr125rn/public_html/MotoMarta/wp-content/themes/dilectio/functions. php:349) in /home3/cbr125rn/public_html/MotoMarta/wp-includes/pluggable.php on line 850 * When I am typing a new post, this message appears in red at the bottom of the text box as I’m typing. Then when I hit “publish”, I get a blank white screen with this message on it. I don’t understand this. Viewing 10 replies - 1 through 10 (of 10 total) * Thread Starter [motom](https://wordpress.org/support/users/motom/) * (@motom) * [17 years, 3 months ago](https://wordpress.org/support/topic/header-error-message/#post-989186) * Oh yes.. the post does get published, even though my admin side of the site seems to have gone haywire. * Also, within each post, instead of an actual paragraph break, there is this A with an ‘ on top of it symbol. * [Samuel B](https://wordpress.org/support/users/samboll/) * (@samboll) * [17 years, 3 months ago](https://wordpress.org/support/topic/header-error-message/#post-989195) * [http://codex.wordpress.org/Answers-Troubleshooting#Headers_already_sent](http://codex.wordpress.org/Answers-Troubleshooting#Headers_already_sent) * [iharvey](https://wordpress.org/support/users/iharvey/) * (@iharvey) * [17 years, 3 months ago](https://wordpress.org/support/topic/header-error-message/#post-989204) * I have a similar probelm which just started last month * WordPress database error: [Can’t open file: ‘wp_comments.MYI’. (errno: 145)] SELECT COUNT(*) FROM wp_comments WHERE comment_approved = ‘0’ * Warning: Cannot modify header information – headers already sent by (output started at /home/iharvey/public_html/blog/wp-includes/wp-db.php:133) in /home/iharvey/ public_html/blog/wp-includes/pluggable.php on line 331 * I’ll try the link and see if it helps * [iharvey](https://wordpress.org/support/users/iharvey/) * (@iharvey) * [17 years, 3 months ago](https://wordpress.org/support/topic/header-error-message/#post-989208) * Well I looked but could not find the specifics…….Faqs seem to have moved and been reorganized * [iharvey](https://wordpress.org/support/users/iharvey/) * (@iharvey) * [17 years, 3 months ago](https://wordpress.org/support/topic/header-error-message/#post-989210) * Also I’m getting missing words in my posts….entire paragraphs disappear even though they are in the original * [Samuel B](https://wordpress.org/support/users/samboll/) * (@samboll) * [17 years, 3 months ago](https://wordpress.org/support/topic/header-error-message/#post-989214) * > Can’t open file: ‘wp_comments.MYI * that error looks like a table has crashed in the database run a repair on your database tables with phpmyadmin or ask your host to do it * Thread Starter [motom](https://wordpress.org/support/users/motom/) * (@motom) * [17 years, 3 months ago](https://wordpress.org/support/topic/header-error-message/#post-989222) * I just realized I get two separate errors. When I’m typing a new post this is the error that appears at the bottom of the text box: * Warning: Cannot modify header information – headers already sent by (output started at /home3/cbr125rn/public_html/MotoMarta/wp-content/themes/dilectio/functions. php:349) in /home3/cbr125rn/public_html/MotoMarta/wp-includes/classes.php on line 1571 * Thread Starter [motom](https://wordpress.org/support/users/motom/) * (@motom) * [17 years, 3 months ago](https://wordpress.org/support/topic/header-error-message/#post-989224) * Thanks samboll, so this is a problem with the original WP files I downloaded when installing WP? Because I have never even as much as opened the files these errors are mentioning. And also why would this error only show up now and with this theme? * I have installed WP only about 2 weeks ago and every thing was running fine all that time. Also the problem goes away if I select a different theme and returns when I choose the Dilectio them again. Which is making me wonder.. is this a theme problem or a larger problem with the wp files? * [Samuel B](https://wordpress.org/support/users/samboll/) * (@samboll) * [17 years, 3 months ago](https://wordpress.org/support/topic/header-error-message/#post-989233) * @ MotoM `themes/dilectio/functions.php` that is the file with the problem look here how to fix it [http://codex.wordpress.org/Answers-Troubleshooting#Headers_already_sent](http://codex.wordpress.org/Answers-Troubleshooting#Headers_already_sent) * believe it or not, this is happening with increasing frequency with themes a space or a carriage return at start or end of file * Thread Starter [motom](https://wordpress.org/support/users/motom/) * (@motom) * [17 years, 3 months ago](https://wordpress.org/support/topic/header-error-message/#post-989450) * Thanks! I removed a few spaces at the end of the file and that took care of all the problem including those weird A symbols. Viewing 10 replies - 1 through 10 (of 10 total) The topic ‘Header error message’ is closed to new replies. ## Tags * [dilectio](https://wordpress.org/support/topic-tag/dilectio/) * [header](https://wordpress.org/support/topic-tag/header/) * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/) * 10 replies * 3 participants * Last reply from: [motom](https://wordpress.org/support/users/motom/) * Last activity: [17 years, 3 months ago](https://wordpress.org/support/topic/header-error-message/#post-989450) * Status: resolved ## Topics ### Topics with no replies ### Non-support topics ### Resolved topics ### Unresolved topics ### All topics