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Cannot modify header information (2 posts)

  1. sophie.operationnelle
    Member
    Posted 2 years ago #

    I am working on the back office, so we can easily edit an article. Somehow each time I save the modifications, it send me to blank http://nnnnnnnn/wp-admin/post.php with this error.

    Warning: Cannot modify header information - headers already sent by (output started at /homepages/nnnn/hhh/mmmm/ddd/wp-content/themes/ssss/) in /homepages/nn/nnnnn/nnnn/nnnn/wp-includes/pluggable.php on line 866

    Is it a problem with my theme/template, or is this wordpress having a problem. I've started over 3 times, and the last time, I hardly changed anything in the code, and still get this message.

    If anyone had this problem before, please notify me.

  2. esmi
    Forum Moderator
    Posted 2 years ago #

    Have you tried:

    - deactivating all plugins to see if this resolves the problem. If this works, re-activate the plugins one by one until you find the problematic plugin(s).

    - switching to the Twenty Eleven theme to rule out any theme-specific problems.

    - resetting the plugins folder by FTP or PhpMyAdmin. Sometimes, an apparently inactive plugin can still cause problems.

    - re-uploading the wp-admin and wp-includes folders from a fresh download of WordPress 3.3.1.

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