Headers Already Sent

  • pillorybarn

    (@pillorybarn)


    5 years, 1 month ago

    Hi, I wonder if you can help me. I have recently upgraded to WordPress 5.7 and now the plugin is coming up with the following errors:

    Warning: Cannot modify header information - headers already sent by (output started at /home/website-name/bedrock/web/app/plugins/tradedoubler-affiliate-tracker/admin/class-tradedoubler_affiliate_tracker-admin-settings.php:1) in /home/website-name/bedrock/web/wp/wp-includes/functions.php on line 6362

Warning: Cannot modify header information - headers already sent by (output started at /home/website-name/bedrock/web/app/plugins/tradedoubler-affiliate-tracker/admin/class-tradedoubler_affiliate_tracker-admin-settings.php:1) in /home/website-name/bedrock/web/wp/wp-admin/includes/misc.php on line 1310

Warning: Cannot modify header information - headers already sent by (output started at /home/website-name/bedrock/web/app/plugins/tradedoubler-affiliate-tracker/admin/class-tradedoubler_affiliate_tracker-admin-settings.php:1) in /home/website-name/bedrock/web/wp/wp-admin/admin-header.php on line 9

    This has adverse affects on the rest of the admin as if anything is actioned, I am left with a white screen and have to refresh the page. Do you know what causes this issue. Thanks

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