Title: core checkout fields: javascript error Last modified: August 17, 2021 --- # core checkout fields: javascript error * Resolved [janice4summer](https://wordpress.org/support/users/janice4summer/) * (@janice4summer) * [4 years, 9 months ago](https://wordpress.org/support/topic/core-checkout-fields-javascript-error/) * Hi, * Since the latest booster update, I have those annoying Javascript errors. They interfere in the checkout, and cause that some people can’t order anymore in woocommerce, which is a disaster ! * **This is the error I get in Google Chrome console:** * ``` wcj-checkout-core-fields.js?ver=5.4.4:24 Uncaught TypeError: Cannot read property '0' of undefined at HTMLParagraphElement. (wcj-checkout-core-fields.js?ver=5.4.4:24) at Function.each (jquery.js?ver=1.12.4-wp:2) at n.fn.init.each (jquery.js?ver=1.12.4-wp:2) at Object. (wcj-checkout-core-fields.js?ver=5.4.4:22) at Function.each (jquery.js?ver=1.12.4-wp:2) at Object. (wcj-checkout-core-fields.js?ver=5.4.4:11) at Function.each (jquery.js?ver=1.12.4-wp:2) at Object. (wcj-checkout-core-fields.js?ver=5.4.4:10) at Function.each (jquery.js?ver=1.12.4-wp:2) at HTMLDocument. (wcj-checkout-core-fields.js?ver=5.4.4:9) ``` * I have bought lifetime and unlimited sites for Booster, but sadly they have stopped giving support. Even when support was included, it was extremely slow, poor and sometimes I did not even get anwsers. * Thanks for helping - This topic was modified 4 years, 9 months ago by [janice4summer](https://wordpress.org/support/users/janice4summer/). Viewing 6 replies - 1 through 6 (of 6 total) * Plugin Contributor [David G](https://wordpress.org/support/users/gravid7/) * (@gravid7) * [4 years, 9 months ago](https://wordpress.org/support/topic/core-checkout-fields-javascript-error/#post-14778630) * Hi [@janice4summer](https://wordpress.org/support/users/janice4summer/) * Thanks for reaching out to us. * Can you please share screenshots of your configuration settings? So, we can check and help you to solve this issue. * Thread Starter [janice4summer](https://wordpress.org/support/users/janice4summer/) * (@janice4summer) * [4 years, 9 months ago](https://wordpress.org/support/topic/core-checkout-fields-javascript-error/#post-14781102) * hi, * here are the screenshots of the “core checkhout fields”, which gives errors: * [https://pasteboard.co/KgtSEMQ.png](https://pasteboard.co/KgtSEMQ.png) [https://pasteboard.co/KgtRDyK.png](https://pasteboard.co/KgtRDyK.png) * Plugin Contributor [David G](https://wordpress.org/support/users/gravid7/) * (@gravid7) * [4 years, 9 months ago](https://wordpress.org/support/topic/core-checkout-fields-javascript-error/#post-14791158) * Hi [@janice4summer](https://wordpress.org/support/users/janice4summer/) * Thanks for sharing the screenshot. * If possible can you please confirm are you using the latest version of the woocommerce and wordpress or not? If not then please try to upgrade it. Because I have checked we are not facing this kind of errors. * Thread Starter [janice4summer](https://wordpress.org/support/users/janice4summer/) * (@janice4summer) * [4 years, 9 months ago](https://wordpress.org/support/topic/core-checkout-fields-javascript-error/#post-14794709) * Hi David, * I can confirm I have the latest Woocommerce, WordPress and Booster. * Could I send you a private link/login so you can check this ? * Thank you for your consideration * Moderator [Steven Stern (sterndata)](https://wordpress.org/support/users/sterndata/) * (@sterndata) * Volunteer Forum Moderator * [4 years, 9 months ago](https://wordpress.org/support/topic/core-checkout-fields-javascript-error/#post-14800278) * [@janice4summer](https://wordpress.org/support/users/janice4summer/) Please don’t offer to send or post logon credentials on these forums: * `https://wordpress.org/support/guidelines#the-bad-stuff` * You can contact the author on their own site and, once there, the discussion is between the two of you. However, it is not OK to enter or send site credentials on these forums. We don’t want to encourage others (who are less reputable) to do similar things. It’s a fine line, but one that we need to enforce. Thanks for your cooperation. * [@gravid7](https://wordpress.org/support/users/gravid7/) I’ve deleted your offer to login to your user’s site. I’m am 100% sure you mean well but please _never ask for credentials on these forums._ * [https://wordpress.org/support/guidelines/#the-bad-stuff](https://wordpress.org/support/guidelines/#the-bad-stuff) * Now for the why: The internet is a wonderful place full of very nice people and a few very bad ones. I’m sure everyone here is very nice however, by giving some ones keys to your house you are trusting they wont steal anything. Likewise the person who takes the keys is now responsible for the house FOREVER. * If something was to go wrong, then you the author may well legally become liable for damages, which they would not normally have been as their software is provided without warranty. * **Please be aware that repeatedly asking for credentials will result in us escalating this to the plugins team.** * It’s never necessary to do that. Here’s why. * There are many ways to get information you need and accessing the user’s site is not one of them. That’s going too far. - Ask for a link to the [http://pastebin.com/](http://pastebin.com/) log of the user’s web server error log. - Ask the user to create and post a link to their `phpinfo();` output. - Ask the user to install the [Health Check plugin](https://wordpress.org/support/plugin/health-check/) and get the data that way. - Walk the user through [enabling WP_DEBUG and how to log that output to a file and how to share that file.](https://codex.wordpress.org/WP_DEBUG#WP_DEBUG_LOG_and_WP_DEBUG_DISPLAY) - Walk the user through basic troubleshooting steps such and disabling all other plugins, clear their cache and cookies and try again. - Ask the user for the step-by-step on how they can reproduce the problem. * You get the idea. * Volunteer support is not easy. But these forums need to a safe place for all users, experienced or new. Accessing their system that way is a short cut that will get you into real trouble in these forums. * Plugin Contributor [David G](https://wordpress.org/support/users/gravid7/) * (@gravid7) * [4 years, 9 months ago](https://wordpress.org/support/topic/core-checkout-fields-javascript-error/#post-14802389) * Hi [@janice4summer](https://wordpress.org/support/users/janice4summer/) * There was a bug in the file. Please replace this \wp-content\plugins\booster- plus-for-woocommerce\includes\js\wcj-checkout-core-fields.js file code to attached file code. * [https://drive.google.com/file/d/14rW31x87YeOgBgyPRTDl9X4aKWepjTTx/view?usp=sharing](https://drive.google.com/file/d/14rW31x87YeOgBgyPRTDl9X4aKWepjTTx/view?usp=sharing) * Please check and let us know if you need further help from us. Viewing 6 replies - 1 through 6 (of 6 total) The topic ‘core checkout fields: javascript error’ is closed to new replies. * ![](https://ps.w.org/woocommerce-jetpack/assets/icon-256x256.png?rev=3351194) * [Booster for WooCommerce – PDF Invoices, Abandoned Cart, Variation Swatches & 100+ Tools](https://wordpress.org/plugins/woocommerce-jetpack/) * [Frequently Asked Questions](https://wordpress.org/plugins/woocommerce-jetpack/#faq) * [Support Threads](https://wordpress.org/support/plugin/woocommerce-jetpack/) * [Active Topics](https://wordpress.org/support/plugin/woocommerce-jetpack/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/woocommerce-jetpack/unresolved/) * [Reviews](https://wordpress.org/support/plugin/woocommerce-jetpack/reviews/) * 6 replies * 3 participants * Last reply from: [David G](https://wordpress.org/support/users/gravid7/) * Last activity: [4 years, 9 months ago](https://wordpress.org/support/topic/core-checkout-fields-javascript-error/#post-14802389) * Status: resolved