Title: Fatal error upon checkout Last modified: March 14, 2023 --- # Fatal error upon checkout * Resolved [cathylky](https://wordpress.org/support/users/cathylky/) * (@cathylky) * [3 years, 4 months ago](https://wordpress.org/support/topic/fatal-error-upon-checkout/) * I was testing my WooCommerce store and when I checked out, I received below fatal error message. Appreciate your help to resolve this, thanks. * **Fatal error**: Uncaught TypeError: Argument 1 passed to WC_Payments_Order_Success_Page:: add_notice_previous_paid_order() must be of the type string, null given, called in /home/thegensi/staging.thegensilver.com/wp-includes/class-wp-hook.php on line 310 and defined in /home/thegensi/staging.thegensilver.com/wp-content/plugins/ woocommerce-payments/includes/class-wc-payments-order-success-page.php:80 Stack trace: #0 /home/thegensi/staging.thegensilver.com/wp-includes/class-wp-hook.php( 310): WC_Payments_Order_Success_Page->add_notice_previous_paid_order(NULL) #1/ home/thegensi/staging.thegensilver.com/wp-includes/plugin.php(205): WP_Hook-> apply_filters(NULL, Array) #2 /home/thegensi/staging.thegensilver.com/wp-content/ plugins/woocommerce/templates/checkout/thankyou.php(42): apply_filters(‘woocommerce_tha…’,‘\ xE8\xAC\x9D\xE8\xAC\x9D\xEF\xBC\x8C\xE6\x88\x91\xE5\x80\x91…’, Object(Automattic\ WooCommerce\Admin\Overrides\Order)) #3 /home/thegensi/staging.thegensilver.com/ wp-content/plugins/woocommerce/includes/wc-core-functions. in **/home/thegensi/ staging.thegensilver.com/wp-content/plugins/woocommerce-payments/includes/class- wc-payments-order-success-page.** * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ffatal-error-upon-checkout%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 5 replies - 1 through 5 (of 5 total) * [xue28 (woo-hc)](https://wordpress.org/support/users/xue28/) * (@xue28) * [3 years, 4 months ago](https://wordpress.org/support/topic/fatal-error-upon-checkout/#post-16560752) * Hi [@cathylky](https://wordpress.org/support/users/cathylky/) * Thanks for reaching out! * I understand that you received the error message above after placing an order on your site, correct? * Checking the error logs, this is pointing to the [WooCommerce Payments](https://wordpress.org/plugins/woocommerce-payments/) plugin, however, checking your site’s [checkout page](https://www.staging.thegensilver.com/checkout/), I am only seeing the payment gateways: [Stripe](https://wordpress.org/plugins/woocommerce-gateway-stripe/) and [Direct Bank Transfer (BACS)](https://woocommerce.com/document/bacs/) as shown below: * ![](https://i0.wp.com/snipboard.io/b3kIup.jpg?ssl=1) * I’d like to understand your site properly, please share your **System Status Report** that you can find via `WooCommerce > Status`. Select `Get system report` and then `Copy for support`. Once you’ve done that, you can paste it into your reply here. * If you could also provide the **complete fatal error logs** (if any) under `WooCommerce > Status > Logs`. * You could copy and paste your reply here or paste it via [https://gist.github.com/](https://gist.github.com/) and send the link here. * Thanks! * Thread Starter [cathylky](https://wordpress.org/support/users/cathylky/) * (@cathylky) * [3 years, 4 months ago](https://wordpress.org/support/topic/fatal-error-upon-checkout/#post-16561425) * System report: * ```wp-block-code ### WordPress Environment ### WordPress address (URL): https://www.staging.thegensilver.com Site address (URL): https://www.staging.thegensilver.com WC Version: 7.4.1 REST API Version: ✔ 7.4.1 WC Blocks Version: ✔ 9.4.4 Action Scheduler Version: ✔ 3.5.4 Log Directory Writable: ✔ WP Version: 6.1.1 WP Multisite: – WP Memory Limit: 768 MB WP Debug Mode: ✔ WP Cron: ✔ Language: zh_TW External object cache: – ### Server Environment ### Server Info: 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Number of Decimals: 2 Taxonomies: Product Types: external (external) grouped (grouped) simple (simple) variable (variable) Taxonomies: Product Visibility: exclude-from-catalog (exclude-from-catalog) exclude-from-search (exclude-from-search) featured (featured) outofstock (outofstock) rated-1 (rated-1) rated-2 (rated-2) rated-3 (rated-3) rated-4 (rated-4) rated-5 (rated-5) Connected to WooCommerce.com: – Enforce Approved Product Download Directories: ✔ Order datastore: WC_Order_Data_Store_CPT ### WC Pages ### Shop base: #3119 - /shop/ Cart: #3120 - /cart/ Checkout: #3121 - /checkout/ My account: #3122 - /my-account/ Terms and conditions: #3123 - /return-policy/ ### Theme ### Name: Soledad Child Theme Version: 1.0 Author URL: http://pencidesign.com/ Child Theme: ✔ Parent Theme Name: soledad Parent Theme Version: 8.3.2 Parent Theme Author URL: https://pencidesign.net/ WooCommerce Support: ✔ ### Templates ### Overrides: soledad/woocommerce/archive-product.php version - is out of date. The core version is 3.4.0 soledad/woocommerce/cart/cross-sells.php version - is out of date. The core version is 4.4.0 soledad/woocommerce/cart/mini-cart.php version - is out of date. The core version is 5.2.0 soledad/woocommerce/checkout/form-checkout.php version - is out of date. The core version is 3.5.0 soledad/woocommerce/content-product-cat.php version - is out of date. The core version is 4.7.0 soledad/woocommerce/content-product.php version - is out of date. The core version is 3.6.0 soledad/woocommerce/content-single-product.php version - is out of date. The core version is 3.6.0 soledad/woocommerce/global/quantity-input.php version - is out of date. The core version is 7.4.0 soledad/woocommerce/loop/loop-start.php version - is out of date. The core version is 3.3.0 soledad/woocommerce/loop/pagination.php version - is out of date. The core version is 3.3.1 soledad/woocommerce/loop/sale-flash.php version - is out of date. The core version is 1.6.4 soledad/woocommerce/single-product/meta.php version - is out of date. The core version is 3.0.0 soledad/woocommerce/single-product/product-image.php version - is out of date. The core version is 3.5.1 soledad/woocommerce/single-product/related.php version - is out of date. The core version is 3.9.0 soledad/woocommerce/single-product/sale-flash.php version - is out of date. The core version is 1.6.4 soledad/woocommerce/single-product/tabs/tabs.php version - is out of date. The core version is 3.8.0 soledad/woocommerce/single-product/up-sells.php version - is out of date. The core version is 3.0.0 soledad/woocommerce/single-product-reviews.php version - is out of date. The core version is 4.3.0 Outdated Templates: ❌ Learn how to update ### WooCommerce PayPal Payments ### Onboarded: ✔ Shop country code: HK WooCommerce currency supported: ✔ Advanced Card Processing available in country: – Pay Later messaging available in country: – Webhook status: – Vault enabled: ✔ Logging enabled: – Reference Transactions: – Used PayPal Checkout plugin: – Tracking enabled: ✔ ### Admin ### Enabled Features: activity-panels analytics coupons customer-effort-score-tracks import-products-task experimental-fashion-sample-products shipping-smart-defaults shipping-setting-tour homescreen marketing multichannel-marketing mobile-app-banner navigation new-product-management-experience onboarding onboarding-tasks remote-inbox-notifications remote-free-extensions payment-gateway-suggestions shipping-label-banner subscriptions store-alerts transient-notices woo-mobile-welcome wc-pay-promotion wc-pay-welcome-page Disabled Features: minified-js product-variation-management settings Daily Cron: ✔ Next scheduled: 2023-03-16 05:12:25 +08:00 Options: ✔ Notes: 87 Onboarding: completed ### WooCommerce Payments ### Version: 5.5.1 Connected to WPCOM: Yes Blog ID: 208783305 Account ID: acct_1LKecu2HFhomz4Ur ### Action Scheduler ### Canceled: 27 Oldest: 2023-03-08 05:53:37 +0000 Newest: 2023-03-15 06:15:25 +0000 Complete: 856 Oldest: 2023-02-15 05:50:28 +0000 Newest: 2023-03-15 10:01:00 +0000 Failed: 57 Oldest: 2022-11-18 13:24:42 +0000 Newest: 2023-03-08 07:14:16 +0000 Pending: 7 Oldest: 2023-03-15 10:01:17 +0000 Newest: 2023-03-22 06:03:26 +0000 ### Status report information ### Generated at: 2023-03-15 18:01:38 +08:00 ``` * Thread Starter [cathylky](https://wordpress.org/support/users/cathylky/) * (@cathylky) * [3 years, 4 months ago](https://wordpress.org/support/topic/fatal-error-upon-checkout/#post-16561438) * Error log: * **fatal-errors-2023-03-14-3317b3d3a926ff7d35626dc9de068f0c.log** * ```wp-block-code 2023-03-14T10:40:34+00:00 CRITICAL Uncaught TypeError: Argument 1 passed to WC_Payments_Order_Success_Page::add_notice_previous_paid_order() must be of the type string, null given, called in /home/thegensi/staging.thegensilver.com/wp-includes/class-wp-hook.php on line 310 and defined in /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce-payments/includes/class-wc-payments-order-success-page.php:80 Stack trace: #0 /home/thegensi/staging.thegensilver.com/wp-includes/class-wp-hook.php(310): WC_Payments_Order_Success_Page->add_notice_previous_paid_order(NULL) #1 /home/thegensi/staging.thegensilver.com/wp-includes/plugin.php(205): WP_Hook->apply_filters(NULL, Array) #2 /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce/templates/checkout/thankyou.php(42): apply_filters('woocommerce_tha...', '\xE8\xAC\x9D\xE8\xAC\x9D\xEF\xBC\x8C\xE6\x88\x91\xE5\x80\x91...', Object(Automattic\WooCommerce\Admin\Overrides\Order)) #3 /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce/includes/wc-core-functions. 於 /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce-payments/includes/class-wc-payments-order-success-page.php 在 80 線上 2023-03-14T10:43:54+00:00 CRITICAL Uncaught TypeError: Argument 1 passed to WC_Payments_Order_Success_Page::add_notice_previous_paid_order() must be of the type string, null given, called in /home/thegensi/staging.thegensilver.com/wp-includes/class-wp-hook.php on line 310 and defined in /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce-payments/includes/class-wc-payments-order-success-page.php:80 Stack trace: #0 /home/thegensi/staging.thegensilver.com/wp-includes/class-wp-hook.php(310): WC_Payments_Order_Success_Page->add_notice_previous_paid_order(NULL) #1 /home/thegensi/staging.thegensilver.com/wp-includes/plugin.php(205): WP_Hook->apply_filters(NULL, Array) #2 /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce/templates/checkout/thankyou.php(42): apply_filters('woocommerce_tha...', '\xE8\xAC\x9D\xE8\xAC\x9D\xEF\xBC\x8C\xE6\x88\x91\xE5\x80\x91...', Object(Automattic\WooCommerce\Admin\Overrides\Order)) #3 /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce/includes/wc-core-functions. 於 /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce-payments/includes/class-wc-payments-order-success-page.php 在 80 線上 2023-03-14T10:52:20+00:00 CRITICAL Uncaught TypeError: Argument 1 passed to WC_Payments_Order_Success_Page::add_notice_previous_paid_order() must be of the type string, null given, called in /home/thegensi/staging.thegensilver.com/wp-includes/class-wp-hook.php on line 310 and defined in /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce-payments/includes/class-wc-payments-order-success-page.php:80 Stack trace: #0 /home/thegensi/staging.thegensilver.com/wp-includes/class-wp-hook.php(310): WC_Payments_Order_Success_Page->add_notice_previous_paid_order(NULL) #1 /home/thegensi/staging.thegensilver.com/wp-includes/plugin.php(205): WP_Hook->apply_filters(NULL, Array) #2 /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce/templates/checkout/thankyou.php(42): apply_filters('woocommerce_tha...', '\xE8\xAC\x9D\xE8\xAC\x9D\xEF\xBC\x8C\xE6\x88\x91\xE5\x80\x91...', Object(Automattic\WooCommerce\Admin\Overrides\Order)) #3 /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce/includes/wc-core-functions. 於 /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce-payments/includes/class-wc-payments-order-success-page.php 在 80 線上 2023-03-14T11:27:57+00:00 CRITICAL Uncaught TypeError: Argument 1 passed to WC_Payments_Order_Success_Page::add_notice_previous_paid_order() must be of the type string, null given, called in /home/thegensi/staging.thegensilver.com/wp-includes/class-wp-hook.php on line 310 and defined in /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce-payments/includes/class-wc-payments-order-success-page.php:80 Stack trace: #0 /home/thegensi/staging.thegensilver.com/wp-includes/class-wp-hook.php(310): WC_Payments_Order_Success_Page->add_notice_previous_paid_order(NULL) #1 /home/thegensi/staging.thegensilver.com/wp-includes/plugin.php(205): WP_Hook->apply_filters(NULL, Array) #2 /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce/templates/checkout/thankyou.php(42): apply_filters('woocommerce_tha...', '\xE8\xAC\x9D\xE8\xAC\x9D\xEF\xBC\x8C\xE6\x88\x91\xE5\x80\x91...', Object(Automattic\WooCommerce\Admin\Overrides\Order)) #3 /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce/includes/wc-core-functions. 於 /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce-payments/includes/class-wc-payments-order-success-page.php 在 80 線上 2023-03-14T11:59:42+00:00 CRITICAL Uncaught TypeError: Argument 1 passed to WC_Payments_Order_Success_Page::add_notice_previous_paid_order() must be of the type string, null given, called in /home/thegensi/staging.thegensilver.com/wp-includes/class-wp-hook.php on line 310 and defined in /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce-payments/includes/class-wc-payments-order-success-page.php:80 Stack trace: #0 /home/thegensi/staging.thegensilver.com/wp-includes/class-wp-hook.php(310): WC_Payments_Order_Success_Page->add_notice_previous_paid_order(NULL) #1 /home/thegensi/staging.thegensilver.com/wp-includes/plugin.php(205): WP_Hook->apply_filters(NULL, Array) #2 /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce/templates/checkout/thankyou.php(42): apply_filters('woocommerce_tha...', '\xE8\xAC\x9D\xE8\xAC\x9D\xEF\xBC\x8C\xE6\x88\x91\xE5\x80\x91...', Object(Automattic\WooCommerce\Admin\Overrides\Order)) #3 /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce/includes/wc-core-functions. 於 /home/thegensi/staging.thegensilver.com/wp-content/plugins/woocommerce-payments/includes/class-wc-payments-order-success-page.php 在 80 線上 ``` * [Roxy](https://wordpress.org/support/users/roxannestoltz/) * (@roxannestoltz) * [3 years, 4 months ago](https://wordpress.org/support/topic/fatal-error-upon-checkout/#post-16561879) * Hi [@cathylky](https://wordpress.org/support/users/cathylky/) , * Thanks for sharing the Status report and error logs, this is very helpful! * ```wp-block-code ### Templates ### Overrides: soledad/woocommerce/archive-product.php version - is out of date. The core version is 3.4.0 soledad/woocommerce/checkout/form-checkout.php version - is out of date. The core version is 3.5.0 ``` * Firstly, I am able to see that your theme template files are all outdated, more specifically the `soledad/woocommerce/checkout/form-checkout.php`, which could be causing the error you are seeing since the `form-checkout.php` includes the following actions: * ![](https://i0.wp.com/snipboard.io/pYiP97.jpg?ssl=1) * As a first step, please could you update these templates and see if this resolves the issue. You can read more about fixing outdated templates [here](https://woocommerce.com/document/fix-outdated-templates-woocommerce/). * If the issue persists after doing that, I’d suggest performing a [full conflict test](https://docs.woocommerce.com/document/how-to-test-for-conflicts/), to rule out any theme/plugin conflicts causing the error. * To test, you’ll first want to change the theme on your site to [Storefront](https://wordpress.org/themes/storefront/), then check to see if the issue is still present. If that resolves the issue, you’ll want to get in touch with your theme’s developer and see if they have an update or fix for you. * If changing the theme doesn’t help, you’ll want to deactivate all plugins **except for WooCommerce** and take a look. If that fixes the problem, re-enable the other plugins one by one (gradually), checking after each, to see where the issue is coming from. * Let us know how this goes! * [Roxy](https://wordpress.org/support/users/roxannestoltz/) * (@roxannestoltz) * [3 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-upon-checkout/#post-16596762) * Hi [@cathylky](https://wordpress.org/support/users/cathylky/) , * We haven’t heard back from you in a while, so I’m going to mark this as resolved– we’ll be here if you need any further help with this. * Cheers! Viewing 5 replies - 1 through 5 (of 5 total) The topic ‘Fatal error upon checkout’ 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/) ## Tags * [check out](https://wordpress.org/support/topic-tag/check-out/) * [fatal error](https://wordpress.org/support/topic-tag/fatal-error/) * 5 replies * 3 participants * Last reply from: [Roxy](https://wordpress.org/support/users/roxannestoltz/) * Last activity: [3 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-upon-checkout/#post-16596762) * Status: resolved