Cannot modify headers information

  • I am getting the error below, not too sure why. My code says:

    if (!isset($_SESSION)) session_start();

    (This code is triggered by a snippet.)

    Thank you, both for the plug-in and for the support!

    —-
    ERROR:

    Warning: Cannot modify header information – headers already sent by (output started at /opt/bitnami/apps/wordpress/htdocs/wp-includes/formatting.php:5079) in /opt/bitnami/apps/wordpress/htdocs/wp-content/plugins/wp-native-php-sessions/callbacks.php on line 35

    • This topic was modified 7 years, 5 months ago by tomlandis. Reason: (typo)

    The page I need help with: [log in to see the link]

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