Title: Fatal error Last modified: July 3, 2020 --- # Fatal error * Resolved [roblep](https://wordpress.org/support/users/roblep/) * (@roblep) * [5 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-3541/) * I am using a separate plugin that allows users to make a payment via PayPal “ Accept PayPal Payments using Contact Form 7” by ZealousWeb. During testing, when I submit this payment form upon callback from PayPal an error within the Drag and Drop plugin is causing a fatal error. * Fatal error: Uncaught Error: Call to a member function scan_form_tags() on null in /var/www/site/public_html/wp-content/plugins/drag-and-drop-multiple-file-upload- contact-form-7/inc/dnd-upload-cf7.php:297 Stack trace: #0 /var/www/site/public_html/ wp-includes/class-wp-hook.php(289): dnd_cf7_mail_components(Array, NULL) #1 / var/www/site/public_html/wp-includes/plugin.php(206): WP_Hook->apply_filters( Array, Array) #2 /var/www/site/public_html/wp-content/plugins/contact-form-7/ includes/mail.php(108): apply_filters(‘wpcf7_mail_comp…’, Array, NULL, Object( WPCF7_Mail)) #3 /var/www/site/public_html/wp-content/plugins/contact-form-7/includes/ mail.php(19): WPCF7_Mail->compose() #4 /var/www/site/public_html/wp-content/plugins/ contact-form-7-paypal-extension/inc/lib/class.cf7pe.lib.php(587): WPCF7_Mail:: send(Array, ‘mail’) #5 /var/www/site/public_html/wp-content/plugins/contact-form- 7-paypal-extension/inc/lib/class.cf7pe.lib.php(191): CF7PE_Lib->mail(Object(WPCF7_Submission), Array) #6 /var/www/site/ in /var/www/site/public_html/wp-content/plugins/drag- and-drop-multiple-file-upload-contact-form-7/inc/dnd-upload-cf7.php on line 297 There has been a critical error on your website. * Help! It’s a great plugin, but in this case it seems to be triggering an error when it’s not even being used for a particular form! Viewing 13 replies - 1 through 13 (of 13 total) * Plugin Author [Glen Don Mongaya](https://wordpress.org/support/users/glenwpcoder/) * (@glenwpcoder) * [5 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-3541/#post-13067443) * Hello [@roblep](https://wordpress.org/support/users/roblep/) , * Currently, this plugin not yet tested with other extensions for Contact Form 7, specially this plugin “Accept PayPal Payments using Contact Form 7”, but I will try to install it and will see what I can do. * Thanks * Glen. * Thread Starter [roblep](https://wordpress.org/support/users/roblep/) * (@roblep) * [5 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-3541/#post-13067952) * Thanks Glen, Both plugins are pretty fantastic at what they do. If you can resolve the issue, that would be excellent. * Plugin Author [Glen Don Mongaya](https://wordpress.org/support/users/glenwpcoder/) * (@glenwpcoder) * [5 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-3541/#post-13075721) * [@roblep](https://wordpress.org/support/users/roblep/) , So I installed the plugin on my server and I can replicate the issue. * I tried to fix and the error and it doesn’t show anymore but I did not received any email. * I saw there’s some kind customization about the plugin that override the default functionality of contact form 7, like email sending, filters which doesn’t work on my plugin. * Have you tried try this plugin? [https://wordpress.org/plugins/contact-form-7-paypal-add-on/](https://wordpress.org/plugins/contact-form-7-paypal-add-on/) * Thread Starter [roblep](https://wordpress.org/support/users/roblep/) * (@roblep) * [5 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-3541/#post-13078275) * Hi Glen, Same error occurs on the pro version of Scott’s plugin, same line number 297. 🙁 * Plugin Author [Glen Don Mongaya](https://wordpress.org/support/users/glenwpcoder/) * (@glenwpcoder) * [5 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-3541/#post-13078395) * Okay, will do a further testing. * I will review their plugin (code structure) and I’ll see what I can do. * I’ll let you know if theres a better solution. * Plugin Author [Glen Don Mongaya](https://wordpress.org/support/users/glenwpcoder/) * (@glenwpcoder) * [5 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-3541/#post-13099948) * Hello [@roblep](https://wordpress.org/support/users/roblep/) , * I tested scott plugin recently and it’s working correctly. * Payment was successfull and it also sent an email with attachments. * Please make sure to deactivate the previous plugin and test again. * Just let me know if still have any issues. * Glen. * Thread Starter [roblep](https://wordpress.org/support/users/roblep/) * (@roblep) * [5 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-3541/#post-13104128) * Hi Glen, * Unfortunately, the error has still occurred on my server. * Fatal error: Uncaught Error: Call to a member function scan_form_tags() on null cf7pp_listen_for_paypal_ipn(”) #6 /var/www/site/public_html/wp-includes/class- wp-hook.php(311): WP_Hook->apply_filters(NULL, in /var/www/site/public_html/wp- content/plugins/drag-and-drop-multiple-file-upload-contact-form-7/inc/dnd-upload- cf7.php on line 336 * I’ve updated both the paypal plugin from Scott and your own plugin. * Plugin Author [Glen Don Mongaya](https://wordpress.org/support/users/glenwpcoder/) * (@glenwpcoder) * [5 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-3541/#post-13104336) * Okay can you try this version? * [https://drive.google.com/file/d/1zjfh1-59zrg9kYcqj4dOsC02EGmCliuQ/view?usp=sharing](https://drive.google.com/file/d/1zjfh1-59zrg9kYcqj4dOsC02EGmCliuQ/view?usp=sharing) * Plugin Author [Glen Don Mongaya](https://wordpress.org/support/users/glenwpcoder/) * (@glenwpcoder) * [5 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-3541/#post-13116062) * [@roblep](https://wordpress.org/support/users/roblep/) , please let me know if that version that I sent is working. * So I can update the repo and close this thread. * Thanks. * Thread Starter [roblep](https://wordpress.org/support/users/roblep/) * (@roblep) * [5 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-3541/#post-13121434) * Hi Glen, Thanks for that – that seems to have done the trick. Seems to work perfectly – the error no longer appearing, returnURL page loading as expected when the plugin is activated. Thanks for taking the time to look into this and resolve. * Thread Starter [roblep](https://wordpress.org/support/users/roblep/) * (@roblep) * [5 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-3541/#post-13121448) * Marked as resolved. * Thread Starter [roblep](https://wordpress.org/support/users/roblep/) * (@roblep) * [5 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-3541/#post-13121452) * Glen, I’ll assume you’ll include this fix in the main build so when updates are released it’ll all be sparky. 🙂 * Plugin Author [Glen Don Mongaya](https://wordpress.org/support/users/glenwpcoder/) * (@glenwpcoder) * [5 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-3541/#post-13121462) * [@roblep](https://wordpress.org/support/users/roblep/) , thanks. * Yes, the fixes will be included on the next update. Viewing 13 replies - 1 through 13 (of 13 total) The topic ‘Fatal error’ is closed to new replies. * ![](https://ps.w.org/drag-and-drop-multiple-file-upload-contact-form-7/assets/ icon-128x128.jpg?rev=1984850) * [Drag and Drop Multiple File Upload for Contact Form 7](https://wordpress.org/plugins/drag-and-drop-multiple-file-upload-contact-form-7/) * [Frequently Asked Questions](https://wordpress.org/plugins/drag-and-drop-multiple-file-upload-contact-form-7/#faq) * [Support Threads](https://wordpress.org/support/plugin/drag-and-drop-multiple-file-upload-contact-form-7/) * [Active Topics](https://wordpress.org/support/plugin/drag-and-drop-multiple-file-upload-contact-form-7/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/drag-and-drop-multiple-file-upload-contact-form-7/unresolved/) * [Reviews](https://wordpress.org/support/plugin/drag-and-drop-multiple-file-upload-contact-form-7/reviews/) * 13 replies * 2 participants * Last reply from: [Glen Don Mongaya](https://wordpress.org/support/users/glenwpcoder/) * Last activity: [5 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-3541/#post-13121462) * Status: resolved