Title: Sending error Last modified: March 1, 2021 --- # Sending error * Resolved [lammic](https://wordpress.org/support/users/lammic/) * (@lammic) * [5 years, 2 months ago](https://wordpress.org/support/topic/sending-error-9/) * I know this plugin is tested till WP 5.5.3. Im running a WP Installation with 5.6.2 and CF7 5.4 and i didn´t recognized it before. Now on sending the Form it saves the post but the formular does not retrieve the success message. Instead i got an error on console code:”invalid_json” and the ajax spinner is turning around endless. * Do you plan an update in the near future? Viewing 14 replies - 1 through 14 (of 14 total) * Plugin Author [Aurovrata Venet](https://wordpress.org/support/users/aurovrata/) * (@aurovrata) * [5 years, 2 months ago](https://wordpress.org/support/topic/sending-error-9/#post-14122880) * CF7 5.4 is breaking many extensions due to changes in its data schema and validation of files. * Are you submitting files in your form? * You can downgrade to the last stable version of CF7 prior to 5.4, which is [v5.3.2](https://downloads.wordpress.org/plugin/contact-form-7.5.3.2.zip) and see if it works for you. * Thread Starter [lammic](https://wordpress.org/support/users/lammic/) * (@lammic) * [5 years, 2 months ago](https://wordpress.org/support/topic/sending-error-9/#post-14122953) * Yes, i´m using a submitting file. I tried to downgrade my core to 5.5.2, CF7 to 5.3.2 and installed also Post my CF7 V4.1.9. * If i have this plugin installed, i now get an 500 error on submitting the form, but only if all required fields are filled. If i disable this plugin, the formular works as expected. - This reply was modified 5 years, 2 months ago by [lammic](https://wordpress.org/support/users/lammic/). * Plugin Author [Aurovrata Venet](https://wordpress.org/support/users/aurovrata/) * (@aurovrata) * [5 years, 2 months ago](https://wordpress.org/support/topic/sending-error-9/#post-14123040) * > I tried to downgrade my core to 5.5.2 * that’s not required. It will work with the latest WP. * > i now get an 500 error on submitting the form * can you enable WP_DEBUG mode on your installation and report back the error message. * Thread Starter [lammic](https://wordpress.org/support/users/lammic/) * (@lammic) * [5 years, 2 months ago](https://wordpress.org/support/topic/sending-error-9/#post-14123088) * [02-Mar-2021 14:51:33 UTC] PHP Fatal error: Uncaught Error: Cannot use object of type WP_Post as array in /var/www/web28665297/html/wordpress/wp-content/plugins/ send-pdf-for-contact-form-7/classes/send-pdf.php:928 Stack trace: #0 /var/www/ web28665297/html/wordpress/wp-includes/class-wp-hook.php(287): cf7_sendpdf->wpcf7pdf_mail_components( Array, Object(WPCF7_ContactForm), Object(WPCF7_Mail)) #1 /var/www/web28665297/ html/wordpress/wp-includes/plugin.php(206): WP_Hook->apply_filters(Array, Array)# 2 /var/www/web28665297/html/wordpress/wp-content/plugins/contact-form-7/includes/ mail.php(108): apply_filters(‘wpcf7_mail_comp…’, Array, Object(WPCF7_ContactForm), Object(WPCF7_Mail)) #3 /var/www/web28665297/html/wordpress/wp-content/plugins/ contact-form-7/includes/mail.php(19): WPCF7_Mail->compose() #4 /var/www/web28665297/ html/wordpress/wp-content/plugins/contact-form-7/includes/submission.php(468): WPCF7_Mail::send(Array, ‘mail’) #5 /var/www/web28665297/html/wordpress/wp-content/ plugins/contact-form-7/includes/submission.php(87): WPCF7_Submission->mail() # 6 in /var/www/web28665297/html/wordpress/wp-content/plugins/send-pdf-for-contact- form-7/classes/send-pdf.php on line 928 * It looks like a conflict with the Plugin Send Pdf for CF7. The plugin works fine if i disable post my cf7. - This reply was modified 5 years, 2 months ago by [lammic](https://wordpress.org/support/users/lammic/). - This reply was modified 5 years, 2 months ago by [lammic](https://wordpress.org/support/users/lammic/). * Plugin Author [Aurovrata Venet](https://wordpress.org/support/users/aurovrata/) * (@aurovrata) * [5 years, 2 months ago](https://wordpress.org/support/topic/sending-error-9/#post-14123344) * indeed, wrong plugin 🙂 * However, I believe “Send Pdf for CF7” is one of the plugin that has been badly broken by the recent update to CF7. Please raise the issue with the plugin author. * there is still an issue with this plugin and the handling of files. I I will keep this thread open till I release a fix. * Thread Starter [lammic](https://wordpress.org/support/users/lammic/) * (@lammic) * [5 years, 2 months ago](https://wordpress.org/support/topic/sending-error-9/#post-14123841) * Well i need it, also yours 🙂 How i mentioned before, the plugin works fine if i disable your plugin. Only if it is activated sending the form runs in an issue. But saving the post through the Formular works in every case. * I tested a copy of the website on a foreign server and all works perfect together. I’m weird 🤔 * Plugin Author [Aurovrata Venet](https://wordpress.org/support/users/aurovrata/) * (@aurovrata) * [5 years, 2 months ago](https://wordpress.org/support/topic/sending-error-9/#post-14125856) * > How i mentioned before, the plugin works fine if i disable your plugin. * indeed, odd. Someone else reported they had better success using CF7 v5.2.2. * Given the changes in CF7 v5.4 it is going to be difficult to fix with conventional file upload field. * It is possible the solution will require shifting to a custom field uploader ( such as drag and drop plugins). * Plugin Author [Aurovrata Venet](https://wordpress.org/support/users/aurovrata/) * (@aurovrata) * [5 years, 2 months ago](https://wordpress.org/support/topic/sending-error-9/#post-14139378) * v4.1.11 along with Smart Grid plugin v4.9.0 now fixes the file attachments in mail notifications. * Let me know if you are still having the Send PDF error * Thread Starter [lammic](https://wordpress.org/support/users/lammic/) * (@lammic) * [5 years, 2 months ago](https://wordpress.org/support/topic/sending-error-9/#post-14139394) * Thank you. I will give it a try next week. * Plugin Author [Aurovrata Venet](https://wordpress.org/support/users/aurovrata/) * (@aurovrata) * [5 years, 2 months ago](https://wordpress.org/support/topic/sending-error-9/#post-14145472) * the author of Send PDF is [testing a fix](https://github.com/maximum-software/pdf-forms-for-contact-form-7/issues/10) which hopefully should be release soon. * Thread Starter [lammic](https://wordpress.org/support/users/lammic/) * (@lammic) * [5 years, 2 months ago](https://wordpress.org/support/topic/sending-error-9/#post-14155646) * I tested the v4.1.11 and the same error still occurs. I have an eye on the Fix of Send PDF. Thanks for your support. * Plugin Author [Aurovrata Venet](https://wordpress.org/support/users/aurovrata/) * (@aurovrata) * [5 years, 2 months ago](https://wordpress.org/support/topic/sending-error-9/#post-14155946) * > I tested the v4.1.11 and the same error still occurs. I have an eye on the > Fix of Send PDF. Thanks for your support. * is the error still occurring when you are not using Send PDF plugin? * Thread Starter [lammic](https://wordpress.org/support/users/lammic/) * (@lammic) * [5 years, 1 month ago](https://wordpress.org/support/topic/sending-error-9/#post-14195714) * FIY. The problem was caused through YOAST SEO Plugin v15.8. A downgrade resolve this problem. * Plugin Author [Aurovrata Venet](https://wordpress.org/support/users/aurovrata/) * (@aurovrata) * [5 years, 1 month ago](https://wordpress.org/support/topic/sending-error-9/#post-14195764) * that’s very odd! Was it interfering with the AJAX/REST api call made by CF7? Viewing 14 replies - 1 through 14 (of 14 total) The topic ‘Sending error’ is closed to new replies. * ![](https://ps.w.org/post-my-contact-form-7/assets/icon-256x256.png?rev=1985682) * [Post My CF7 Form](https://wordpress.org/plugins/post-my-contact-form-7/) * [Frequently Asked Questions](https://wordpress.org/plugins/post-my-contact-form-7/#faq) * [Support Threads](https://wordpress.org/support/plugin/post-my-contact-form-7/) * [Active Topics](https://wordpress.org/support/plugin/post-my-contact-form-7/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/post-my-contact-form-7/unresolved/) * [Reviews](https://wordpress.org/support/plugin/post-my-contact-form-7/reviews/) ## Tags * [Invalid JSON](https://wordpress.org/support/topic-tag/invalid-json/) * 14 replies * 3 participants * Last reply from: [Aurovrata Venet](https://wordpress.org/support/users/aurovrata/) * Last activity: [5 years, 1 month ago](https://wordpress.org/support/topic/sending-error-9/#post-14195764) * Status: resolved