Title: Errors: Undefined Property & Cannot modify header info
Last modified: August 5, 2020

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# Errors: Undefined Property & Cannot modify header info

 *  Resolved [cpahoregon](https://wordpress.org/support/users/cpahoregon/)
 * (@cpahoregon)
 * [5 years, 10 months ago](https://wordpress.org/support/topic/errors-undefined-property-cannot-modify-header-info/)
 * Hi, I’m getting the following errors with the Total Upkeep plugin. I tried to
   see if this has already been reported/fixed but I’m unable to find it.
 * Notice: Undefined property: stdClass::$response in /wp-content/plugins/boldgrid-
   backup/vendor/boldgrid/library/src/Library/Theme/Theme.php on line 142
 * Warning: Cannot modify header information – headers already sent by (output started
   at /wp-content/plugins/boldgrid-backup/vendor/boldgrid/library/src/Library/Theme/
   Theme.php:142) in /home/dh_tiihz3/childdev.cpahoregon.org/wp-includes/functions.
   php on line 6221
 * Warning: Cannot modify header information – headers already sent by (output started
   at /wp-content/plugins/boldgrid-backup/vendor/boldgrid/library/src/Library/Theme/
   Theme.php:142) in /home/dh_tiihz3/childdev.cpahoregon.org/wp-admin/includes/misc.
   php on line 1282
 * Warning: Cannot modify header information – headers already sent by (output started
   at /wp-content/plugins/boldgrid-backup/vendor/boldgrid/library/src/Library/Theme/
   Theme.php:142) in /home/dh_tiihz3/childdev.cpahoregon.org/wp-admin/admin-header.
   php on line 9
 * Thanks for your help!
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ferrors-undefined-property-cannot-modify-header-info%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Contributor [Jesse Owens](https://wordpress.org/support/users/jessecowens/)
 * (@jessecowens)
 * [5 years, 10 months ago](https://wordpress.org/support/topic/errors-undefined-property-cannot-modify-header-info/#post-13218036)
 * Hi [@cpahoregon](https://wordpress.org/support/users/cpahoregon/)
    This issue
   happens very rarely if there was an error installing the BoldGrid common libraries.
   The first thing to try to resolve it is to deactivate and **delete** the plugin,
   and then reinstall the plugin fresh.
 * Occasionally during this, the plugin might not delete completely and you might
   get an error that the “destination folder already exists.” If you see that error
   when you’re re-installing, use your host’s file manager, FTP, or SSH to delete
   the folder **wp-content/plugins/boldgrid-backup** and reinstall it again.
 *  Thread Starter [cpahoregon](https://wordpress.org/support/users/cpahoregon/)
 * (@cpahoregon)
 * [5 years, 10 months ago](https://wordpress.org/support/topic/errors-undefined-property-cannot-modify-header-info/#post-13219454)
 * Thank you… I just noticed I have Total Upkeep and Total Upkeep Premium – 2 plugins.
   Should I delete them both or is having both why the error happened? Thanks for
   helping clarify and work this out!
 *  Thread Starter [cpahoregon](https://wordpress.org/support/users/cpahoregon/)
 * (@cpahoregon)
 * [5 years, 10 months ago](https://wordpress.org/support/topic/errors-undefined-property-cannot-modify-header-info/#post-13219612)
 * I went ahead and deactivated and deleted both and reinstalled. I’m not seeing
   more header errors so I believe that did the trick. Thanks so much for your help!

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Errors: Undefined Property & Cannot modify header info’ is closed to 
new replies.

 * ![](https://ps.w.org/boldgrid-backup/assets/icon-256x256.png?rev=1880952)
 * [Total Upkeep – WordPress Backup Plugin plus Restore & Migrate by BoldGrid](https://wordpress.org/plugins/boldgrid-backup/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/boldgrid-backup/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/boldgrid-backup/)
 * [Active Topics](https://wordpress.org/support/plugin/boldgrid-backup/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/boldgrid-backup/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/boldgrid-backup/reviews/)

 * 3 replies
 * 2 participants
 * Last reply from: [cpahoregon](https://wordpress.org/support/users/cpahoregon/)
 * Last activity: [5 years, 10 months ago](https://wordpress.org/support/topic/errors-undefined-property-cannot-modify-header-info/#post-13219612)
 * Status: resolved