Critical PHP Fatal Error with MultiVendorX and Yoast SEO

Hello, MultiVendorX team, the awesome WC Marketplace support team from years!! ??

For information, I got a PHP Fatal Error when using MultiVendorx & Yoast SEO.

Here’s my configuration:

• PHP: v8.1
• WordPress: v6.2.2
• MultiVendorX: v4.0.20

Steps to reproduce the error:

1. Activate the following free plugins: MultiVendorX and Yoast SEO.
2. Go to: Yoast SEO => Tools => Optimize SEO Data.
3. Click on the button: Optimize SEO Data, and the error appears after some time. Please refer to my attached screenshot.

Here’s the detailed PHP error:

PHP Fatal error: Uncaught Error: Call to undefined function wc_print_notices() in /var/www/html/wp-content/plugins/dc-woocommerce-multi-vendor/templates/shortcode/vendor_registration.php:2 Stack trace: #0 /var/www/html/wp-content/plugins/dc-woocommerce-multi-vendor/classes/class-mvx-template.php(38): include() #1 /var/www/html/wp-content/plugins/dc-woocommerce-multi-vendor/classes/shortcode/class-mvx-shortcode-vendor-registration.php(36): MVX_Template->get_template() #2 /var/www/html/wp-content/plugins/dc-woocommerce-multi-vendor/classes/class-mvx-shortcode.php(89): MVX_Vendor_Registration_Shortcode::output() #3 /var/www/html/wp-content/plugins/dc-woocommerce-multi-vendor/classes/class-mvx-shortcode.php(65): MVX_Shortcode::shortcode_wrapper() #4 /var/www/html/wp-includes/shortcodes.php(355): MVX_Shortcode::mvx_vendor_registration_shortcode() #5 [internal function]: do_shortcode_tag() #6 /var/www/html/wp-includes/shortcodes.php(227): preg_replace_callback() #7 /var/www/html/wp-includes/class-wp-hook.php(308): do_shortcode() #8 /var/www/html/wp-includes/plugin.php(205): WP_Hook->apply_filters() #9 /var/www/html/wp-content/plugins/wordpress-seo/src/builders/indexable-link-builder.php(115): apply_filters() #10 /var/www/html/wp-content/plugins/wordpress-seo/src/actions/indexing/abstract-link-indexing-action.php(65): Yoast\WP\SEO\Builders\Indexable_Link_Builder->build() #11 /var/www/html/wp-content/plugins/wordpress-seo/src/routes/abstract-indexation-route.php(24): Yoast\WP\SEO\Actions\Indexing\Abstract_Link_Indexing_Action->index() #12 /var/www/html/wp-content/plugins/wordpress-seo/src/routes/indexing-route.php(418): Yoast\WP\SEO\Routes\Abstract_Indexation_Route->run_indexation_action() #13 /var/www/html/wp-content/plugins/wordpress-seo/src/routes/indexing-route.php(354): Yoast\WP\SEO\Routes\Indexing_Route->run_indexation_action() #14 /var/www/html/wp-includes/rest-api/class-wp-rest-server.php(1181): Yoast\WP\SEO\Routes\Indexing_Route->index_post_links() #15 /var/www/html/wp-includes/rest-api/class-wp-rest-server.php(1028): WP_REST_Server->respond_to_request() #16 /var/www/html/wp-includes/rest-api/class-wp-rest-server.php(442): WP_REST_Server->dispatch() #17 /var/www/html/wp-includes/rest-api.php(410): WP_REST_Server->serve_request() #18 /var/www/html/wp-includes/class-wp-hook.php(308): rest_api_loaded() #19 /var/www/html/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters() #20 /var/www/html/wp-includes/plugin.php(565): WP_Hook->do_action() #21 /var/www/html/wp-includes/class-wp.php(399): do_action_ref_array() #22 /var/www/html/wp-includes/class-wp.php(780): WP->parse_request() #23 /var/www/html/wp-includes/functions.php(1334): WP->main() #24 /var/www/html/wp-blog-header.php(16): wp() #25 /var/www/html/index.php(17): require('...') #26 {main} thrown in /var/www/html/wp-content/plugins/dc-woocommerce-multi-vendor/templates/shortcode/vendor_registration.php on line 2

I encountered a PHP Fatal Error while performing a specific action on my website. To reproduce the issue, please follow the steps mentioned above. After activating the plugins MultiVendorX and Yoast SEO, navigate to Yoast SEO => Tools => Optimize SEO Data. Clicking on the ‘Optimize SEO Data’ button triggers the error after a certain period of time.

The error message indicates a fatal error in the PHP code, specifically in the file /var/www/html/wp-content/plugins/dc-woocommerce-multi-vendor/templates/shortcode/vendor_registration.php on line 2. It states that there is an undefined function call to wc_print_notices().

Please note that if I deactivate the MultiVendorX plugin, the Yoast SEO data optimization tool works perfectly again.

I also have some more issues with Yoast SEO, and I hope it’s not an incompatibility with MultiVendorX. If that’s the case, I’m interested to know if it is indeed the cause.

I would appreciate your assistance in resolving this issue as it prevents me from using the MultiVendorX plugin properly in conjunction with Yoast SEO. Thank you for your attention and support!