Multiple Warning can not modify header information on admin pages

  • rcforster

    (@rcforster)


    7 years ago

    Hi,

    Recently, the plugin is showing multiple header errors with Cannot modify header information – headers already sent by

    Please see following ones shown:

    Warning: Cannot modify header information – headers already sent by (output started at /wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in /public_html/wp-login.php on line 421

    Warning: Cannot modify header information – headers already sent by (output started at /public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in public_html/wp-login.php on line 434

    Warning: Cannot modify header information – headers already sent by (output started at /public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in /public_html/wp-includes/pluggable.php on line 948

    Warning: Cannot modify header information – headers already sent by (output started at public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in public_html/wp-includes/pluggable.php on line 949

    Warning: Cannot modify header information – headers already sent by (output started at /public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in /public_html/wp-includes/pluggable.php on line 950

    Warning: Cannot modify header information – headers already sent by (output started at /public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in /public_html/wp-includes/pluggable.php on line 951

    Warning: Cannot modify header information – headers already sent by (output started at /public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in /public_html/wp-includes/pluggable.php on line 952

    Warning: Cannot modify header information – headers already sent by (output started at /public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in /public_html/wp-includes/pluggable.php on line 953

    Warning: Cannot modify header information – headers already sent by (output started at /public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in public_html/wp-includes/pluggable.php on line 956

    Warning: Cannot modify header information – headers already sent by (output started at /public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in /public_html/wp-includes/pluggable.php on line 957

    Warning: Cannot modify header information – headers already sent by (output started at /public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in /public_html/wp-includes/pluggable.php on line 960

    Warning: Cannot modify header information – headers already sent by (output started at /public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in /public_html/wp-includes/pluggable.php on line 961

    Warning: Cannot modify header information – headers already sent by (output started at /public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in /public_html/wp-includes/pluggable.php on line 962

    Warning: Cannot modify header information – headers already sent by (output started at /public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in /public_html/wp-includes/pluggable.php on line 963

    Warning: Cannot modify header information – headers already sent by (output started at /public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in /public_html/wp-includes/pluggable.php on line 966

    Warning: Cannot modify header information – headers already sent by (output started at /public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in /public_html/wp-includes/pluggable.php on line 967

    Warning: Cannot modify header information – headers already sent by (output started at /public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in /public_html/wp-includes/pluggable.php on line 968

    Warning: Cannot modify header information – headers already sent by (output started at /public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in /public_html/wp-includes/pluggable.php on line 969

    Can you please advise?

Viewing 4 replies - 1 through 4 (of 4 total)
  • Thread Starter rcforster

    (@rcforster)

    UPDATE

    This relates to the weather API. I have disabled it and I no longer get the errors.

    Maybe the weather API needs an update or a failsafe to prevent these messages from showing as one is not able to login to the admin area to disable it (I disabled the plugin via FTP and then re-enabled, and then disabled the Weather API).

    Plugin Author Thomas Geiger

    (@duracelltomi)

    Thanks, this is a known bug that as been fixed in the dev version.
    New version is scheduled to be released later this week.

    mtrout

    (@mtrout)

    Hi,

    I’m having the same issue, the only difference is that it’s preventing me to login to my dahsboard. I thought, the problem was because i forgotten my password and i tried re-starting it, but everytime I click on the link from the email to reset my password all i get is this:

    Warning: Cannot modify header information – headers already sent by (output started at /var/sites/h/hustleandstir.co.uk/public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in /var/sites/h/hustleandstir.co.uk/public_html/wp-login.php on line 421

    Warning: Cannot modify header information – headers already sent by (output started at /var/sites/h/hustleandstir.co.uk/public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in /var/sites/h/hustleandstir.co.uk/public_html/wp-login.php on line 434

    Warning: Cannot modify header information – headers already sent by (output started at /var/sites/h/hustleandstir.co.uk/public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in /var/sites/h/hustleandstir.co.uk/public_html/wp-login.php on line 631

    Warning: Cannot modify header information – headers already sent by (output started at /var/sites/h/hustleandstir.co.uk/public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:452) in /var/sites/h/hustleandstir.co.uk/public_html/wp-includes/pluggable.php on line 1216

    Do you know if there is a way of bypassing this so that I can gain access to my account?

    Plugin Author Thomas Geiger

    (@duracelltomi)

    Hi,

    I have heard this kind of blocker only once but did not find out why the login screen is blocked. If you have access to your files (via FTP for example) one solution could be to remove the folder of my plugin under wp-content/plugins

Viewing 4 replies - 1 through 4 (of 4 total)
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