Internal Server Error on Checkout Page

Good morning and thanks for your attention; I updated the woocommerce plugins on my website (woocommerce, woocommerce checkout manager) and after doing the update, the checkout page does not allow me to complete the purchase and the “internal server error” message appears.

Below is the system report:

<br>### WordPress Environment ###<br><br>WordPress address (URL): https://www.acvivicamper.com<br>Site address (URL): https://www.acvivicamper.com<br>WC Version: 4.9.5<br>REST API Version: ? 4.9.5<br>WC Blocks Version: ? 4.0.0<br>Action Scheduler Version: ? 3.1.6<br>WC Admin Version: ? 1.8.4<br>Log Directory Writable: ?<br>WP Version: ? 5.4.16 - è disponibile una versione più recente di WordPress (6.6.2)<br>WP Multisite: –<br>WP Memory Limit: 512 MB<br>WP Debug Mode: –<br>WP Cron: ?<br>Language: it_IT<br>External object cache: –<br><br>### Server Environment ###<br><br>Server Info: Apache<br>PHP Version: 7.4.33<br>PHP Post Max Size: 50 MB<br>PHP Time Limit: 900<br>PHP Max Input Vars: 5000<br>cURL Version: 7.76.1<br>OpenSSL/1.0.2k-fips<br><br>SUHOSIN Installed: –<br>MySQL Version: 5.6.51-91.0-log<br>Max Upload Size: 50 MB<br>Default Timezone is UTC: ?<br>fsockopen/cURL: ?<br>SoapClient: ?<br>DOMDocument: ?<br>GZip: ?<br>Multibyte String: ?<br>Remote Post: ?<br>Remote Get: ?<br><br>### Database ###<br><br>WC Database Version: 4.9.5<br>WC Database Prefix: wp_<br>Dimensione totale database: 707.79MB<br>Dimensione dati database: 690.07MB<br>Dimensione indice database: 17.72MB<br>wp_woocommerce_sessions: Dati: 5.83MB + indice: 0.00MB + motore MyISAM<br>wp_woocommerce_api_keys: Dati: 0.00MB + indice: 0.00MB + motore MyISAM<br>wp_woocommerce_attribute_taxonomies: Dati: 0.00MB + indice: 0.01MB + motore MyISAM<br>wp_woocommerce_downloadable_product_permissions: Dati: 0.00MB + indice: 0.00MB + motore MyISAM<br>wp_woocommerce_order_items: Dati: 0.16MB + indice: 0.09MB + motore MyISAM<br>wp_woocommerce_order_itemmeta: Dati: 1.40MB + indice: 0.75MB + motore MyISAM<br>wp_woocommerce_tax_rates: Dati: 0.00MB + indice: 0.00MB + motore MyISAM<br>wp_woocommerce_tax_rate_locations: Dati: 0.00MB + indice: 0.00MB + motore MyISAM<br>wp_woocommerce_shipping_zones: Dati: 0.00MB + indice: 0.00MB + motore MyISAM<br>wp_woocommerce_shipping_zone_locations: Dati: 0.00MB + indice: 0.01MB + motore MyISAM<br>wp_woocommerce_shipping_zone_methods: Dati: 0.00MB + indice: 0.00MB + motore MyISAM<br>wp_woocommerce_payment_tokens: Dati: 0.00MB + indice: 0.00MB + motore MyISAM<br>wp_woocommerce_payment_tokenmeta: Dati: 0.01MB + indice: 0.02MB + motore MyISAM<br>wp_woocommerce_log: Dati: 0.00MB + indice: 0.00MB + motore MyISAM<br>wp_actionscheduler_actions: Dati: 0.11MB + indice: 0.06MB + motore MyISAM<br>wp_actionscheduler_claims: Dati: 0.00MB + indice: 0.00MB + motore MyISAM<br>wp_actionscheduler_groups: Dati: 0.00MB + indice: 0.01MB + motore MyISAM<br>wp_actionscheduler_logs: Dati: 0.08MB + indice: 0.06MB + motore MyISAM<br>wp_advps_optionset: Dati: 0.02MB + indice: 0.00MB + motore InnoDB<br>wp_advps_thumbnail: Dati: 0.02MB + indice: 0.00MB + motore InnoDB<br>wp_commentmeta: Dati: 0.02MB + indice: 0.03MB + motore InnoDB<br>wp_comments: Dati: 1.52MB + indice: 0.59MB + motore InnoDB<br>wp_gde_profiles: Dati: 0.00MB + indice: 0.00MB + motore MyISAM<br>wp_gde_secure: Dati: 0.00MB + indice: 0.00MB + motore MyISAM<br>wp_i_world_map: Dati: 1.52MB + indice: 0.00MB + motore InnoDB<br>wp_links: Dati: 0.02MB + indice: 0.02MB + motore InnoDB<br>wp_options: Dati: 3.48MB + indice: 1.11MB + motore InnoDB<br>wp_postmeta: Dati: 383.56MB + indice: 7.03MB + motore InnoDB<br>wp_posts: Dati: 280.52MB + indice: 1.56MB + motore InnoDB<br>wp_revslider_css: Dati: 0.13MB + indice: 0.00MB + motore InnoDB<br>wp_revslider_layer_animations: Dati: 0.02MB + indice: 0.00MB + motore InnoDB<br>wp_revslider_navigations: Dati: 0.02MB + indice: 0.00MB + motore InnoDB<br>wp_revslider_sliders: Dati: 0.11MB + indice: 0.00MB + motore InnoDB<br>wp_revslider_slides: Dati: 1.52MB + indice: 0.00MB + motore InnoDB<br>wp_revslider_static_slides: Dati: 0.02MB + indice: 0.00MB + motore InnoDB<br>wp_social_rocket_count_data: Dati: 0.00MB + indice: 0.00MB + motore MyISAM<br>wp_termmeta: Dati: 0.02MB + indice: 0.03MB + motore InnoDB<br>wp_terms: Dati: 0.02MB + indice: 0.03MB + motore InnoDB<br>wp_term_relationships: Dati: 0.05MB + indice: 0.02MB + motore InnoDB<br>wp_term_taxonomy: Dati: 0.02MB + indice: 0.03MB + motore InnoDB<br>wp_usermeta: Dati: 2.52MB + indice: 4.03MB + motore InnoDB<br>wp_users: Dati: 0.14MB + indice: 0.14MB + motore InnoDB<br>wp_wc_admin_notes: Dati: 0.08MB + indice: 0.00MB + motore MyISAM<br>wp_wc_admin_note_actions: Dati: 0.05MB + indice: 0.02MB + motore MyISAM<br>wp_wc_category_lookup: Dati: 0.00MB + indice: 0.00MB + motore MyISAM<br>wp_wc_customer_lookup: Dati: 0.07MB + indice: 0.07MB + motore MyISAM<br>wp_wc_download_log: Dati: 0.00MB + indice: 0.00MB + motore MyISAM<br>wp_wc_order_coupon_lookup: Dati: 0.00MB + indice: 0.00MB + motore MyISAM<br>wp_wc_order_product_lookup: Dati: 0.08MB + indice: 0.07MB + motore MyISAM<br>wp_wc_order_stats: Dati: 0.06MB + indice: 0.04MB + motore MyISAM<br>wp_wc_order_tax_lookup: Dati: 0.00MB + indice: 0.00MB + motore MyISAM<br>wp_wc_product_meta_lookup: Dati: 0.01MB + indice: 0.03MB + motore MyISAM<br>wp_wc_reserved_stock: Dati: 0.00MB + indice: 0.00MB + motore MyISAM<br>wp_wc_tax_rate_classes: Dati: 0.00MB + indice: 0.01MB + motore MyISAM<br>wp_wc_webhooks: Dati: 0.00MB + indice: 0.00MB + motore MyISAM<br>wp_woocommerce_termmeta: Dati: 0.00MB + indice: 0.00MB + motore MyISAM<br>wp_yoast_indexable: Dati: 2.08MB + indice: 0.53MB + motore MyISAM<br>wp_yoast_indexable_hierarchy: Dati: 0.04MB + indice: 0.12MB + motore MyISAM<br>wp_yoast_migrations: Dati: 0.00MB + indice: 0.01MB + motore MyISAM<br>wp_yoast_primary_term: Dati: 0.00MB + indice: 0.01MB + motore MyISAM<br>wp_yoast_seo_links: Dati: 4.63MB + indice: 1.06MB + motore MyISAM<br>wp_yoast_seo_meta: Dati: 0.11MB + indice: 0.12MB + motore MyISAM<br><br>### Post Type Counts ###<br><br>attachment: 2453<br>css3-rdhov: 2<br>nav_menu_item: 77<br>oembed_cache: 13<br>page: 24<br>polylang_mo: 4<br>post: 88<br>product: 22<br>product_variation: 80<br>project: 106<br>revision: 7521<br>shop_order: 1288<br>testimonial: 9<br>wcps: 1<br>wp_block: 1<br>wpcf7_contact_form: 5<br><br>### Security ###<br><br>Secure connection (HTTPS): ?<br>Hide errors from visitors: ?<br><br>### Active Plugins (21) ###<br><br>Black Studio TinyMCE Widget: by Black Studio – 2.7.3<br>Contact Form 7: by Takayuki Miyoshi – 5.3.2<br>Cookie Notice & Compliance for GDPR / CCPA: by Hu-manity.co – 2.4.18<br>Flexible Shipping: by WP Desk – 4.11.3<br>Font Awesome: by Font Awesome – 4.5.0<br>Google Analytics for WordPress by MonsterInsights: by MonsterInsights – 8.19<br>Google Doc Embedder: by Kevin Davis<br>Dan Lester – 2.6.4<br><br>Interactive World Maps: by Carlos Moreira – 1.7.6<br>PDF Viewer: by Envigeek Web Services – 1.1.0<br>Payment Plugins for PayPal WooCommerce: by Payment Plugins<br>[email protected] – 1.0.52<br><br>reSmush.it Image Optimizer: by reSmush.it – 1.0.4<br>Page Builder by SiteOrigin: by SiteOrigin – 2.29.22<br>SiteOrigin Widgets Bundle: by SiteOrigin – 1.63.3<br>UpdraftPlus - Backup/Ripristino: by TeamUpdraft<br>DavidAnderson – 1.24.6<br><br>WooCommerce Checkout Manager: by QuadLayers – 7.6.0<br>WooCommerce Stripe Gateway: by WooCommerce – 5.4.2<br>WooCommerce: by Automattic – 4.9.5<br>WooSwipe: by Thrive Website Design – 3.0.3<br>Importatore WordPress: by wordpressdotorg – 0.8.3<br>Yoast SEO: by Team Yoast – 15.4<br>WP Fastest Cache: by Emre Vona – 1.3.1<br><br>### Inactive Plugins (0) ###<br><br><br>### Settings ###<br><br>API Enabled: ?<br>Force SSL: –<br>Currency: EUR (€)<br>Currency Position: left<br>Thousand Separator: .<br>Decimal Separator: ,<br>Number of Decimals: 2<br>Taxonomies: Product Types: external (external)<br>grouped (grouped)<br>simple (simple)<br>variable (variable)<br><br>Taxonomies: Product Visibility: exclude-from-catalog (exclude-from-catalog)<br>exclude-from-search (exclude-from-search)<br>featured (featured)<br>outofstock (outofstock)<br>rated-1 (rated-1)<br>rated-2 (rated-2)<br>rated-3 (rated-3)<br>rated-4 (rated-4)<br>rated-5 (rated-5)<br><br>Connected to WooCommerce.com: –<br><br>### WC Pages ###<br><br>Shop base: #5198 - /negozio/<br>Carrello: #601 - /carrello/<br>Pagamento: #602 - /checkout/<br>Il mio account: #603 - /account-personale/<br>Termini e condizioni: #20898 - /termini-e-condizioni/<br><br>### Theme ###<br><br>Name: Create<br>Version: 1.1.0<br>Author URL: https://themetrust.com<br>Child Theme: ? – Se stai modificando WooCommerce o un tema genitore che non hai costruito personalmente<br>ti consigliamo di utilizzare un tema child. Vedi: Come creare un tema child<br><br>WooCommerce Support: ?<br><br>### Templates ###<br><br>Overrides: themetrust-create/woocommerce/archive-product.php versione - è obsoleta. La versione attuale è 3.4.0<br>themetrust-create/woocommerce/content-single-product.php versione 1.6.4 è obsoleta. La versione attuale è 3.6.0<br>themetrust-create/woocommerce/global/form-login.php versione 2.1.0 è obsoleta. La versione attuale è 3.6.0<br>themetrust-create/woocommerce/global/sidebar.php versione - è obsoleta. La versione attuale è 1.6.4<br>themetrust-create/woocommerce/single-product/related.php versione 1.6.4 è obsoleta. La versione attuale è 3.9.0<br>themetrust-create/woocommerce/single-product.php<br><br>Outdated Templates: ?<br>					<br>					<br>						Scopri come aggiornare<br><br>### Action Scheduler ###<br><br>Completato: 4<br>Oldest: 2024-09-26 17:38:13 +0200<br>Newest: 2024-10-23 17:14:34 +0200<br><br>

I Share a copy of fatal error log found under WooCommerce → Status → Logs:

2024-10-25T09:31:46+00:00 CRITICAL Uncaught Error: Class 'Automattic\WooCommerce\Blocks\Utils\CartCheckoutUtils' not found in /web/htdocs/www.acvivicamper.com/home/wp-content/plugins/woocommerce-checkout-manager/lib/view/frontend/class-fields-disable.php:65
Stack trace:
#0 /web/htdocs/www.acvivicamper.com/home/wp-includes/class-wp-hook.php(289): QuadLayers\WOOCCM\View\Frontend\Fields_Disable->fix_country()
#1 /web/htdocs/www.acvivicamper.com/home/wp-includes/plugin.php(206): WP_Hook->apply_filters()
#2 /web/htdocs/www.acvivicamper.com/home/wp-content/plugins/woocommerce-checkout-manager/lib/model/class-field.php(300): apply_filters()
#3 /web/htdocs/www.acvivicamper.com/home/wp-content/plugins/woocommerce-checkout-manager/lib/view/frontend/class-fields-validation.php(23): QuadLayers\WOOCCM\Model\Field->get_fields()
#4 /web/htdocs/www.acvivicamper.com/home/wp-includes/class-wp-hook.php(287): QuadLayers\WOOCCM\View\Frontend\Fields_Validation->validate_fields()
#5 /web/htdocs/www.acvivicamper.com/home/wp-includes/class-wp-hook.php(311): WP_Hook->a in /web/htdocs/www.acvivicamper.com/home/wp-content/plugins/woocommerce-checkout-manager/lib/view/frontend/class-fields-disable.php alla riga 65

I don’t know how to solve the problem.

Thanks so much for the help!

The page I need help with: [log in to see the link]