Title: Marc73's Replies | WordPress.org --- # Marc73 [ ](https://wordpress.org/support/users/marc73/) * [Profile](https://wordpress.org/support/users/marc73/) * [Topics Started](https://wordpress.org/support/users/marc73/topics/) * [Replies Created](https://wordpress.org/support/users/marc73/replies/) * [Reviews Written](https://wordpress.org/support/users/marc73/reviews/) * [Topics Replied To](https://wordpress.org/support/users/marc73/replied-to/) * [Engagements](https://wordpress.org/support/users/marc73/engagements/) * [Favorites](https://wordpress.org/support/users/marc73/favorites/) Search replies: ## Forum Replies Created Viewing 15 replies - 1 through 15 (of 108 total) 1 [2](https://wordpress.org/support/users/marc73/replies/page/2/?output_format=md) [3](https://wordpress.org/support/users/marc73/replies/page/3/?output_format=md)… [6](https://wordpress.org/support/users/marc73/replies/page/6/?output_format=md) [7](https://wordpress.org/support/users/marc73/replies/page/7/?output_format=md) [8](https://wordpress.org/support/users/marc73/replies/page/8/?output_format=md) [→](https://wordpress.org/support/users/marc73/replies/page/2/?output_format=md) * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[Social Media Auto Poster - Schedule & Publish to Buffer] PHP Warning: Undefined array key 0](https://wordpress.org/support/topic/php-warning-undefined-array-key-0-2/) * Thread Starter [Marc73](https://wordpress.org/support/users/marc73/) * (@marc73) * [6 months, 4 weeks ago](https://wordpress.org/support/topic/php-warning-undefined-array-key-0-2/#post-18727511) * thank you WP Zinc * We are running the latest version of your plugin (4.0.6) and are experiencing a persistent PHP Warning that is flooding our error logs. This warning appears to be the bug you intended to fix in the 4.0.6 release. * The following warning is generated repeatedly in the PHP error log whenever the plugin runs, specifically the logging function: * ```wp-block-code PHP Warning: Undefined array key 0 in /usr/www/users/mydomain/wp-content/plugins/wp-to-buffer/lib/includes/class-wp-to-social-pro-log.php on line 327 ``` * 📋 Environment Details - **Plugin Version:** 4.0.6 (Latest) - **PHP Version:** 8.4 - **WordPress Version:** 6.8.3 - **Caching:** Redis Object Cache is active. * 🔎 Troubleshooting Steps Already Taken * To rule out any environmental or data corruption issues, we have performed the following comprehensive steps, and the warning still persists: 1. **Cache/Transient Cleanup:** 2. - Executed `wp cache flush` multiple times. - Executed `wp transient delete --all`. 3. **Plugin Reset:** 4. - Deactivated and then immediately reactivated the WP to Buffer plugin via WP-CLI (`wp plugin deactivate/activate`). 5. **Forced Execution:** 6. - Manually ran the WordPress cron queue (`wp cron event run --due-now`) to force background tasks (like logging/scheduling) to execute, confirming the error is immediately reproducible. 7. **Configuration Check:** 8. - Re-saved all plugin settings in the WordPress admin panel. * Since the error persists after these steps, we believe this is an **unresolved bug in the plugin’s code logic (Line 327)** that may be triggered by specific data in our installation. Please investigate this line in version 4.0.6 for an unhandled array return or empty variable access. * Thank you for your urgent attention to this issue. * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[Quiz and Survey Master (QSM) - Easy Quiz and Survey Maker] Undefined array key 0 in mlw_quizmaster2.php on line 801](https://wordpress.org/support/topic/undefined-array-key-0-in-mlw_quizmaster2-php-on-line-801/) * Thread Starter [Marc73](https://wordpress.org/support/users/marc73/) * (@marc73) * [6 months, 4 weeks ago](https://wordpress.org/support/topic/undefined-array-key-0-in-mlw_quizmaster2-php-on-line-801/#post-18727355) * Dhanush, Hi. * I am now on Quiz And Survey Master Version 10.3.1 and I still have thousands of those in my php log * [20-Nov-2025 23:03:37 UTC] PHP Warning: Undefined array key 0 in /usr/www/users/ mydomain/wp-content/plugins/quiz-master-next/mlw_quizmaster2.php on line 804 * all caches flushed, issue persists * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[Quiz and Survey Master (QSM) - Easy Quiz and Survey Maker] Undefined array key 0 in mlw_quizmaster2.php on line 801](https://wordpress.org/support/topic/undefined-array-key-0-in-mlw_quizmaster2-php-on-line-801/) * Thread Starter [Marc73](https://wordpress.org/support/users/marc73/) * (@marc73) * [7 months, 1 week ago](https://wordpress.org/support/topic/undefined-array-key-0-in-mlw_quizmaster2-php-on-line-801/#post-18715930) * thank you Dhanush. Waiting. * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[Wordfence Security - Firewall, Malware Scan, and Login Security] Documentation on CloudFlare troubleshooting is outdated](https://wordpress.org/support/topic/documentation-on-cloudflare-troubleshooting-is-outdated/) * Thread Starter [Marc73](https://wordpress.org/support/users/marc73/) * (@marc73) * [10 months, 4 weeks ago](https://wordpress.org/support/topic/documentation-on-cloudflare-troubleshooting-is-outdated/#post-18568510) * You are absolutely right, and such differentiation only reflects the great quality of Wordfence’s documentation * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[Wordfence Security - Firewall, Malware Scan, and Login Security] Documentation on CloudFlare troubleshooting is outdated](https://wordpress.org/support/topic/documentation-on-cloudflare-troubleshooting-is-outdated/) * Thread Starter [Marc73](https://wordpress.org/support/users/marc73/) * (@marc73) * [11 months ago](https://wordpress.org/support/topic/documentation-on-cloudflare-troubleshooting-is-outdated/#post-18565034) * ![](https://prnt.sc/wbu6Q9OYVHLz) * Here is my tiny contribution: in today’s Cloudflare, go to your domain name, then go to Security. * Under Security, go to Security Rules and create 3 Custom rules, each for one of Wordfence 3 IP addresses as in [here](https://www.wordfence.com/help/central/connect/#troubleshooting-connection-issues). * Here is a screenshot [https://prnt.sc/ufdQY25GC-Jn](https://prnt.sc/ufdQY25GC-Jn) * I hope this helps. - This reply was modified 11 months ago by [Marc73](https://wordpress.org/support/users/marc73/). * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[Polylang] Widget content in all languages appear](https://wordpress.org/support/topic/widget-content-in-all-languages-appear/) * Thread Starter [Marc73](https://wordpress.org/support/users/marc73/) * (@marc73) * [1 year ago](https://wordpress.org/support/topic/widget-content-in-all-languages-appear/#post-18473582) * Hi. I have shared the required information and waited for 7 days. * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[Wordfence Security - Firewall, Malware Scan, and Login Security] Wordfence license install error](https://wordpress.org/support/topic/wordfence-license-install-error/) * [Marc73](https://wordpress.org/support/users/marc73/) * (@marc73) * [1 year, 2 months ago](https://wordpress.org/support/topic/wordfence-license-install-error/#post-18422264) * Same issue here. * Brand new website, exactly same url, no caching plugins. * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[Super RSS Reader - Add attractive RSS Feed Widget] Thumbnail issueS](https://wordpress.org/support/topic/thumbnail-issues-12/) * Thread Starter [Marc73](https://wordpress.org/support/users/marc73/) * (@marc73) * [1 year, 3 months ago](https://wordpress.org/support/topic/thumbnail-issues-12/#post-18345007) * the 200px width gives better results indeed, but still not ideal… some thumbnails are ill-cropped…. * I don’t understand why the thumbnail simply can’t be 100% width… * but thank you for your kind help * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[Super RSS Reader - Add attractive RSS Feed Widget] Thumbnail issueS](https://wordpress.org/support/topic/thumbnail-issues-12/) * Thread Starter [Marc73](https://wordpress.org/support/users/marc73/) * (@marc73) * [1 year, 3 months ago](https://wordpress.org/support/topic/thumbnail-issues-12/#post-18338025) * i Said 8 days ago * With thumbnail size set at 300px, thumbnails appear cropped losing important information * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[Super RSS Reader - Add attractive RSS Feed Widget] Thumbnail issueS](https://wordpress.org/support/topic/thumbnail-issues-12/) * Thread Starter [Marc73](https://wordpress.org/support/users/marc73/) * (@marc73) * [1 year, 3 months ago](https://wordpress.org/support/topic/thumbnail-issues-12/#post-18338023) * as I have said earlier, that works but shows unprofessional ill cropped thumbnails * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[Super RSS Reader - Add attractive RSS Feed Widget] Thumbnail issueS](https://wordpress.org/support/topic/thumbnail-issues-12/) * Thread Starter [Marc73](https://wordpress.org/support/users/marc73/) * (@marc73) * [1 year, 3 months ago](https://wordpress.org/support/topic/thumbnail-issues-12/#post-18323577) * I have shared my url in private * thank you * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[Wordfence Security - Firewall, Malware Scan, and Login Security] Error Installing License](https://wordpress.org/support/topic/error-installing-license-24/) * Thread Starter [Marc73](https://wordpress.org/support/users/marc73/) * (@marc73) * [1 year, 5 months ago](https://wordpress.org/support/topic/error-installing-license-24/#post-18242541) * Thank you wfpeter. This is now resolved. * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[Quiz and Survey Master (QSM) - Easy Quiz and Survey Maker] QSM causing server error 500](https://wordpress.org/support/topic/qsm-causing-server-error-500/) * Thread Starter [Marc73](https://wordpress.org/support/users/marc73/) * (@marc73) * [1 year, 7 months ago](https://wordpress.org/support/topic/qsm-causing-server-error-500/#post-18098754) * Hi and Thank you for the friendly support I have received so far. * The server error 500 issue is happening again. * There is clearly a conflict between **Quiz And Survey Master** Version 9.2.1 and and the Divi Version: 4.27.2 By [Elegant Themes](http://www.elegantthemes.com/) * Can you help out? * Forum: [Reviews](https://wordpress.org/support/forum/reviews/) In reply to: [[Quiz and Survey Master (QSM) - Easy Quiz and Survey Maker] Error 500, 0 support](https://wordpress.org/support/topic/error-500-0-support/) * Thread Starter [Marc73](https://wordpress.org/support/users/marc73/) * (@marc73) * [1 year, 7 months ago](https://wordpress.org/support/topic/error-500-0-support/#post-18087231) * thank you. This has been fixed by now * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[Quiz and Survey Master (QSM) - Easy Quiz and Survey Maker] QSM causing server error 500](https://wordpress.org/support/topic/qsm-causing-server-error-500/) * Thread Starter [Marc73](https://wordpress.org/support/users/marc73/) * (@marc73) * [1 year, 7 months ago](https://wordpress.org/support/topic/qsm-causing-server-error-500/#post-18087226) * Thank you very much for your very kind reply. * I tried what you mentioned, deleted the plugin folder, re-installed it * Now when I try to go to [https://theswissquality.ch/wp-admin/edit.php?post_type=qsm_quiz](https://theswissquality.ch/wp-admin/edit.php?post_type=qsm_quiz) * I get the error message * You need a higher level of permission. * Sorry, you are not allowed to edit posts in this post type. * I am the administrator and logged in as such Viewing 15 replies - 1 through 15 (of 108 total) 1 [2](https://wordpress.org/support/users/marc73/replies/page/2/?output_format=md) [3](https://wordpress.org/support/users/marc73/replies/page/3/?output_format=md)… [6](https://wordpress.org/support/users/marc73/replies/page/6/?output_format=md) [7](https://wordpress.org/support/users/marc73/replies/page/7/?output_format=md) [8](https://wordpress.org/support/users/marc73/replies/page/8/?output_format=md) [→](https://wordpress.org/support/users/marc73/replies/page/2/?output_format=md)