Cannot modify header information – headers already sent?

  • Resolved Kettercat

    (@kettercat)


    10 years, 1 month ago

    Hey,

    I’m using the Mystile theme for WooCommerce and this is the error message I get when I click on the checkout page:

    Warning: Cannot modify header information – headers already sent by (output started at ***siteaddress***\wp-content\themes\mystile\includes\theme-woocommerce.php:1) in ***siteaddress***\wp-includes\pluggable.php on line 896

    What could be the problem?

    Here’s my theme-woocommerce.php code (with some titles translated):
    [Moderator note: Please consider using PasteBin to share large amounts of code instead]

    https://wordpress.org/plugins/woocommerce/

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