Title: php error Last modified: May 7, 2025 --- # php error * Resolved [Darren Ellis](https://wordpress.org/support/users/dazsmodels/) * (@dazsmodels) * [1 year, 2 months ago](https://wordpress.org/support/topic/php-error-689/) * We are getting the following php error * WarningCannot modify header information – headers already sent by (output started at /home/dazsmode/public_html/wp-includes/functions.php:5471)- 1. wp-content/plugins/litespeed-cache/src/purge.cls.php:515 2. `header()` wp-content/plugins/litespeed-cache/src/purge.cls.php:515 3. `LiteSpeed\Purge->_add()` wp-content/plugins/litespeed-cache/src/purge.cls. php:230 4. `LiteSpeed\Purge->_purge_all_lscache()` wp-content/plugins/litespeed-cache/ src/purge.cls.php:194 5. `LiteSpeed\Purge->_purge_all()` wp-content/plugins/litespeed-cache/src/purge. cls.php:177 6. `LiteSpeed\Purge::purge_all()` wp-includes/class-wp-hook.php:326 7. `do_action('upgrader_process_complete')` wp-admin/includes/class-wp-upgrader. php:988 8. `WP_Upgrader->run()` wp-admin/includes/class-plugin-upgrader.php:135 9. `Plugin_Upgrader->install()` wp-admin/update.php:180 * 4Plugin: litespeed-cache Viewing 6 replies - 1 through 6 (of 6 total) * Plugin Support [litetim](https://wordpress.org/support/users/litetim/) * (@litetim) * [1 year, 2 months ago](https://wordpress.org/support/topic/php-error-689/#post-18454702) * [@dazsmodels](https://wordpress.org/support/users/dazsmodels/) please tell me what LSC version you are using Or you can send a report from: LSC => Toolbox => Report => click on “Send to Litespeed” and share the ID generated. * Thread Starter [Darren Ellis](https://wordpress.org/support/users/dazsmodels/) * (@dazsmodels) * [1 year, 2 months ago](https://wordpress.org/support/topic/php-error-689/#post-18458096) * WarningUndefined array key “file”- 1. wp-content/plugins/litespeed-cache/src/placeholder.cls.php:128 2. `LiteSpeed\Placeholder->media_row_con()` wp-includes/class-wp-hook.php:324 3. `do_action('litespeed_media_row_lqip')` wp-content/plugins/litespeed-cache/ src/placeholder.cls.php:105 4. `LiteSpeed\Placeholder->media_row_actions()` wp-includes/class-wp-hook.php: 324 5. `do_action('manage_media_custom_column')` wp-admin/includes/class-wp-media- list-table.php:714 6. `WP_Media_List_Table->column_default()` wp-admin/includes/class-wp-list-table. php:1802 7. `WP_List_Table->single_row_columns()` wp-admin/includes/class-wp-media-list- table.php:747 8. `WP_Media_List_Table->display_rows()` wp-admin/includes/class-wp-list-table. php:1712 9. `WP_List_Table->display_rows_or_placeholder()` wp-admin/includes/class-wp-list- table.php:1639 10. `WP_List_Table->display()` wp-admin/upload.php:456 * Thread Starter [Darren Ellis](https://wordpress.org/support/users/dazsmodels/) * (@dazsmodels) * [1 year, 2 months ago](https://wordpress.org/support/topic/php-error-689/#post-18458098) * Last Report Number: **RHNTLKSI** * Last Report Date: **05/09/2025 10:15:33** * Plugin Support [litetim](https://wordpress.org/support/users/litetim/) * (@litetim) * [1 year, 2 months ago](https://wordpress.org/support/topic/php-error-689/#post-18458894) * [@dazsmodels](https://wordpress.org/support/users/dazsmodels/) I tested the media code on my site and it’s not thorowing any errors.I was able to test 1 media plugin(the free one), and no error with that.I see you use a PRO plugin and I cannot test it.Please give me more details:Does it happen to all images? Images that have this error have their sizes set? * Thread Starter [Darren Ellis](https://wordpress.org/support/users/dazsmodels/) * (@dazsmodels) * [1 year, 2 months ago](https://wordpress.org/support/topic/php-error-689/#post-18467892) * hi , it has come on to this today * WarningCannot modify header information – headers already sent by (output started at /home/dazsmode/public_html/wp-includes/functions.php:5471)- 1. wp-content/plugins/litespeed-cache/src/purge.cls.php:515 2. `header()` wp-content/plugins/litespeed-cache/src/purge.cls.php:515 3. `LiteSpeed\Purge->_add()` wp-content/plugins/litespeed-cache/src/purge.cls. php:230 4. `LiteSpeed\Purge->_purge_all_lscache()` wp-content/plugins/litespeed-cache/ src/purge.cls.php:194 5. `LiteSpeed\Purge->_purge_all()` wp-content/plugins/litespeed-cache/src/purge. cls.php:177 6. `LiteSpeed\Purge::purge_all()` wp-includes/class-wp-hook.php:326 7. `do_action('upgrader_process_complete')` wp-admin/includes/class-wp-upgrader. php:988 8. `WP_Upgrader->run()` wp-admin/includes/class-plugin-upgrader.php:135 9. `Plugin_Upgrader->install()` wp-admin/update.php:180 * 4Plugin: litespeed-cache * Plugin Support [litetim](https://wordpress.org/support/users/litetim/) * (@litetim) * [1 year, 2 months ago](https://wordpress.org/support/topic/php-error-689/#post-18467951) * [@dazsmodels](https://wordpress.org/support/users/dazsmodels/) Looks like it happenned after some updates. Please give me details:– did you bulk updated plugins manually from admin?– or it was it was automatically update? Viewing 6 replies - 1 through 6 (of 6 total) The topic ‘php error’ is closed to new replies. * ![](https://ps.w.org/litespeed-cache/assets/icon-256x256.png?rev=2554181) * [LiteSpeed Cache](https://wordpress.org/plugins/litespeed-cache/) * [Frequently Asked Questions](https://wordpress.org/plugins/litespeed-cache/#faq) * [Support Threads](https://wordpress.org/support/plugin/litespeed-cache/) * [Active Topics](https://wordpress.org/support/plugin/litespeed-cache/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/litespeed-cache/unresolved/) * [Reviews](https://wordpress.org/support/plugin/litespeed-cache/reviews/) * 6 replies * 2 participants * Last reply from: [litetim](https://wordpress.org/support/users/litetim/) * Last activity: [1 year, 2 months ago](https://wordpress.org/support/topic/php-error-689/#post-18467951) * Status: resolved