# There has been a critical error on this website **URL:** \ **Category:** Hosting Support\ **Created:** [September 26, 2022, 10:29pm UTC](https://forum.infinityfree.com/t/there-has-been-a-critical-error-on-this-website/66579 "2022-09-26T22:29:14Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![anon5631681](https://forum.infinityfree.com/letter_avatar/anon5631681/32/6_22734026db12803ebb3e059622ac3534.png) [@anon5631681](https://forum.infinityfree.com/u/anon5631681)\ **Post date:** [September 26, 2022, 10:29pm UTC](https://forum.infinityfree.com/t/there-has-been-a-critical-error-on-this-website/66579/1 "2022-09-26T22:29:14Z")
### Username (e.g. epiz\_XXX) or Website URL (please specify the website or account you are asking about) Username: epiz\_32529302 Website URL: [https://shopcc.cf](https://shopcc.cf) ### Error Message (please share the FULL error message you see) **Warning** : Use of undefined constant WC\_VERSION - assumed ‘WC\_VERSION’ (this will throw an Error in a future version of PHP) in **/home/vol15\_3/epizy.com/epiz\_32529302/htdocs/wp-content/plugins/ti-woocommerce-wishlist/public/cart.class.php** on line **79** **Fatal error** : Uncaught Error: Class ‘WC\_Widget’ not found in /home/vol15\_3/epizy.com/epiz\_32529302/htdocs/wp-content/plugins/ti-woocommerce-wishlist/public/widget/wishlistcounter.class.php:17 Stack trace: #0 /home/vol15\_3/epizy.com/epiz\_32529302/htdocs/wp-content/plugins/ti-woocommerce-wishlist/ti-woocommerce-wishlist.php(195): require\_once() #1 [internal function]: autoload\_tinv\_wishlist(‘TInvWL\_Public\_W…’) #2 /home/vol15\_3/epizy.com/epiz\_32529302/htdocs/wp-includes/class-wp-widget-factory.php(61): spl\_autoload\_call(‘TInvWL\_Public\_W…’) #3 /home/vol15\_3/epizy.com/epiz\_32529302/htdocs/wp-includes/widgets.php(115): WP\_Widget\_Factory-\>register(‘TInvWL\_Public\_W…’) #4 /home/vol15\_3/epizy.com/epiz\_32529302/htdocs/wp-content/plugins/ti-woocommerce-wishlist/public/tinvwl.class.php(222): register\_widget(‘TInvWL\_Public\_W…’) #5 /home/vol15\_3/epizy.com/epiz\_32529302/htdocs/wp-includes/class-wp-hook.php(307): TInvWL\_Public\_TInvWL-\>register\_widgets(‘’) #6 /home/vol15\_3/epizy.com/epiz\_32529302/htdocs/wp-includes/class-wp-hook.php in **/home/vol15\_3/epizy.com/epiz\_32529302/htdocs/wp-content/plugins/ti-woocommerce-wishlist/public/widget/wishlistcounter.class.php** on line **17** There has been a critical error on this website. Please check your site admin email inbox for instructions. [Learn more about troubleshooting WordPress.](https://wordpress.org/support/article/faq-troubleshooting/) ### Other Information (other information and details relevant to your question) This error occurred after updating woo commerce plugin. ---
**Author:** ![anon46092769](https://forum.infinityfree.com/letter_avatar/anon46092769/32/6_22734026db12803ebb3e059622ac3534.png) [@anon46092769](https://forum.infinityfree.com/u/anon46092769)\ **Post date:** [September 26, 2022, 10:33pm UTC](https://forum.infinityfree.com/t/there-has-been-a-critical-error-on-this-website/66579/2 "2022-09-26T22:33:12Z")
These articles should help you: > [@Installation failed: There has been a critical error on your website](https://forum.infinityfree.com/t/installation-failed-there-has-been-a-critical-error-on-your-website/49361/): > > WordPress supports installing and updating plugins and themes from the official store right through the WordPress admin interface. However, after trying to install or update a large plugin (like WooCommerce) or theme, you may encounter an error like this: Installation failed: There has been a critical error on your website. Please check your site admin email inbox for instructions. Learn more about debugging in WordPress. This error means that the installation process crashed, and may have l… > [@How to fix a corrupted WordPress installation](https://forum.infinityfree.com/t/how-to-fix-a-corrupted-wordpress-installation/49359): > > WordPress frequently releases updates, which you can install through WordPress’ admin interface. Usually, this works without a hitch. But with some (big) upgrades, the upgrade fails half way and leaves you with a broken website. Fortunately, you can still fix your website without any data loss, and this article tells you how to do that. Download a fresh copy of WordPress First of all, you will need to download a fresh copy of WordPress. You can download this from the official WordPress website… ---
**Author:** ![system](https://infinityfree-forum-uploads.s3.dualstack.eu-central-1.amazonaws.com/original/3X/b/0/b024fd3fa88bae093c9576e55c2c94e33f890206.svg) [@system](https://forum.infinityfree.com/u/system)\ **Post date:** [October 5, 2022, 2:56am UTC](https://forum.infinityfree.com/t/there-has-been-a-critical-error-on-this-website/66579/4 "2022-10-05T02:56:57Z")
Closed on October 5, 2022, 2:56am UTC This topic was automatically closed 7 days after the last reply. New replies are no longer allowed.