Title: Critical error while registering Last modified: May 29, 2023 --- # Critical error while registering * Resolved [Konstantinos](https://wordpress.org/support/users/stravojohn/) * (@stravojohn) * [3 years ago](https://wordpress.org/support/topic/critical-error-while-registering/) * Hello, my clients are trying to create an account but they keep receiving a critical error. * I’m using xstore theme but I have tried with storefont aswell but it doesnt work. * I got the following error from wc status. * ```wp-block-code 2023-05-28T08:23:21+00:00 CRITICAL Uncaught Error: Call to undefined function PHPMailer\PHPMailer\mail() in /home/www/kosmos/kosmosmarket.gr/www/wp-includes/PHPMailer/PHPMailer.php:874 Stack trace: #0 /home/www/kosmos/kosmosmarket.gr/www/wp-includes/PHPMailer/PHPMailer.php(1961): PHPMailer\PHPMailer\PHPMailer->mailPassthru('stravojohn@gmai...', '=?UTF-8?B?zp8gz...', '...', 'Date: Sun, 28 M...', NULL) #1 /home/www/kosmos/kosmosmarket.gr/www/wp-includes/PHPMailer/PHPMailer.php(1682): PHPMailer\PHPMailer\PHPMailer->mailSend('Date: Sun, 28 M...', '...') #2 /home/www/kosmos/kosmosmarket.gr/www/wp-includes/PHPMailer/PHPMailer.php(1518): PHPMailer\PHPMailer\PHPMailer->postSend() #3 /home/www/kosmos/kosmosmarket.gr/www/wp-includes/pluggable.php(544): PHPMailer\PHPMailer\PHPMailer->send() #4 /home/www/kosmos/kosmosmarket.gr/www/wp-content/plugins/woocommerce/includes/emails/class-wc-email.php(688): wp_mail(Array, '\xCE\x9F \xCE\xBB\xCE\xBF\xCE\xB3\xCE\xB1\xCF\x81\xCE\xB9...', '...', Array, Array) #5 /home/www/kosmos/kosmosmarket.gr/www/wp-content/plugins/woocommerce/includes/emails/class-wc-email-customer-new-account.php(118): WC_Email->send('stravojohn@gmai...', '\xCE\x9F \xCE\xBB\xCE\xBF\xCE\xB3\xCE\xB1\xCF\x81\xCE\xB9...', '...', 'Content-Type: t...', Array) #6 /home/www/kosmos/kosmosmarket.gr/www/wp-content/plugins/woocommerce/includes/class-wc-emails.php(392): WC_Email_Customer_New_Account->trigger(2, 'OUxuahw#Bwl(', true) #7 /home/www/kosmos/kosmosmarket.gr/www/wp-content/plugins/woocommerce/packages/woocommerce-blocks/src/Domain/Services/CreateAccount.php(49): WC_Emails->customer_new_account(2, Array, true) #8 /home/www/kosmos/kosmosmarket.gr/www/wp-includes/class-wp-hook.php(308): Automattic\WooCommerce\Blocks\Domain\Services\CreateAccount->Automattic\WooCommerce\Blocks\Domain\Services\{closure}(2, Array, true) #9 /home/www/kosmos/kosmosmarket.gr/www/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters('', Array) #10 /home/www/kosmos/kosmosmarket.gr/www/wp-includes/plugin.php(565): WP_Hook->do_action(Array) #11 /home/www/kosmos/kosmosmarket.gr/www/wp-content/plugins/woocommerce/includes/class-wc-emails.php(170): do_action_ref_array('woocommerce_cre...', Array) #12 /home/www/kosmos/kosmosmarket.gr/www/wp-includes/class-wp-hook.php(308): WC_Emails::send_transactional_email(Array, Array, true) #13 /home/www/kosmos/kosmosmarket.gr/www/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array) #14 /home/www/kosmos/kosmosmarket.gr/www/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #15 /home/www/kosmos/kosmosmarket.gr/www/wp-content/plugins/woocommerce/includes/wc-user-functions.php(108): do_action('woocommerce_cre...', 2, Array, true) #16 /home/www/kosmos/kosmosmarket.gr/www/wp-content/plugins/woocommerce/includes/class-wc-form-handler.php(1092): wc_create_new_customer('stravojohn@gmai...', 'stravojohn', 'OUxuahw#Bwl(') #17 /home/www/kosmos/kosmosmarket.gr/www/wp-includes/class-wp-hook.php(308): WC_Form_Handler::process_registration('') #18 /home/www/kosmos/kosmosmarket.gr/www/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array) #19 /home/www/kosmos/kosmosmarket.gr/www/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #20 /home/www/kosmos/kosmosmarket.gr/www/wp-settings.php(645): do_action('wp_loaded') #21 /home/www/kosmos/kosmosmarket.gr/www/wp-config.php(85): require_once('/home/www/kosmo...') #22 /home/www/kosmos/kosmosmarket.gr/www/wp-load.php(50): require_once('/home/www/kosmo...') #23 /home/www/kosmos/kosmosmarket.gr/www/wp-blog-header.php(13): require_once('/home/www/kosmo...') #24 /home/www/kosmos/kosmosmarket.gr/www/index.php(17): require('/home/www/kosmo...') #25 {main} thrown μέσ ``` * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fcritical-error-while-registering%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 1 replies (of 1 total) * [Beauty of Code (woo-hc)](https://wordpress.org/support/users/beautyofcode/) * (@beautyofcode) * [3 years ago](https://wordpress.org/support/topic/critical-error-while-registering/#post-16783002) * Hi [@stravojohn](https://wordpress.org/support/users/stravojohn/) , * Thanks for reaching out! * I understand that your clients are encountering a critical error when trying to create an account on the front end of your site, is this correct? * Please can you clarify if this is a new issue, or one that has been present for a while? If the former, do you recall any changes/updates made to the site before this issue surfaced? * > I’m using xstore theme but I have tried with storefont aswell but it doesnt > work. * This is a great first troubleshooting step, however, I’d suggest performing a full conflict test to rule out any theme/plugins conflicts causing the issue. * The support guide below provides a walkthrough on how to test for conflicts: * [https://docs.woocommerce.com/document/how-to-test-for-conflicts/](https://docs.woocommerce.com/document/how-to-test-for-conflicts/) * Should the issue persist, please can you share a copy of your sites System Status Report which you can find via **WooCommerce** → **Status**. Select `Get system report` and then `Copy for support`. * Once you have that, please share the results on your response here. * Cheers! Viewing 1 replies (of 1 total) The topic ‘Critical error while registering’ is closed to new replies. * ![](https://ps.w.org/woocommerce/assets/icon.svg?rev=3234504) * [WooCommerce](https://wordpress.org/plugins/woocommerce/) * [Frequently Asked Questions](https://wordpress.org/plugins/woocommerce/#faq) * [Support Threads](https://wordpress.org/support/plugin/woocommerce/) * [Active Topics](https://wordpress.org/support/plugin/woocommerce/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/woocommerce/unresolved/) * [Reviews](https://wordpress.org/support/plugin/woocommerce/reviews/) * 1 reply * 2 participants * Last reply from: [Beauty of Code (woo-hc)](https://wordpress.org/support/users/beautyofcode/) * Last activity: [3 years ago](https://wordpress.org/support/topic/critical-error-while-registering/#post-16783002) * Status: resolved