Uncaught Error: Call to a member function is_taxable()

Hi @gguidi ,

Thank you for reaching out. The error is strange and I’m not able to replicate it on my test site with the latest WordPress, WooCommerce and Facebook for WooCommerce installed on the site.

To help us understand your site setup better, could you please send me a copy of your site’s System Status? You can find it via WooCommerce > Status.
Select “Get system report” and then “Copy for support”.

Let us know so we can help you further with this.

Hi @wpnomad
Thanks for your reply. Here’s the report you asked:

### WordPress Environment ###

WordPress address (URL): https://www.bibimima.com
Site address (URL): https://www.bibimima.com
WC Version: 3.8.1
REST API Version: ? 1.0.2
Log Directory Writable: ?
WP Version: 5.3.1
WP Multisite: –
WP Memory Limit: 256 MB
WP Debug Mode: –
WP Cron: ?
Language: it_IT
External object cache: –

### Server Environment ###

Server Info: Apache
PHP Version: 7.3.10
PHP Post Max Size: 384 MB
PHP Time Limit: 900
PHP Max Input Vars: 1000
cURL Version: 7.66.0
OpenSSL/1.1.1c

SUHOSIN Installed: –
MySQL Version: 5.7.28-31-log
Max Upload Size: 256 MB
Default Timezone is UTC: ?
fsockopen/cURL: ?
SoapClient: ?
DOMDocument: ?
GZip: ?
Multibyte String: ?
Remote Post: ?
Remote Get: ?

### Database ###

WC Database Version: 3.8.1
WC Database Prefix: wp208_
MaxMind GeoIP Database: ?
Dimensione totale database: 22.44MB
Dimensione dati database: 16.97MB
Dimensione indice database: 5.47MB
wp208_woocommerce_sessions: Dati: 1.02MB + indice: 0.02MB + motore InnoDB
wp208_woocommerce_api_keys: Dati: 0.02MB + indice: 0.03MB + motore InnoDB
wp208_woocommerce_attribute_taxonomies: Dati: 0.02MB + indice: 0.02MB + motore InnoDB
wp208_woocommerce_downloadable_product_permissions: Dati: 0.02MB + indice: 0.06MB + motore InnoDB
wp208_woocommerce_order_items: Dati: 0.02MB + indice: 0.02MB + motore InnoDB
wp208_woocommerce_order_itemmeta: Dati: 0.05MB + indice: 0.03MB + motore InnoDB
wp208_woocommerce_tax_rates: Dati: 0.02MB + indice: 0.06MB + motore InnoDB
wp208_woocommerce_tax_rate_locations: Dati: 0.02MB + indice: 0.03MB + motore InnoDB
wp208_woocommerce_shipping_zones: Dati: 0.02MB + indice: 0.00MB + motore InnoDB
wp208_woocommerce_shipping_zone_locations: Dati: 0.02MB + indice: 0.03MB + motore InnoDB
wp208_woocommerce_shipping_zone_methods: Dati: 0.02MB + indice: 0.00MB + motore InnoDB
wp208_woocommerce_payment_tokens: Dati: 0.02MB + indice: 0.02MB + motore InnoDB
wp208_woocommerce_payment_tokenmeta: Dati: 0.02MB + indice: 0.03MB + motore InnoDB
wp208_woocommerce_log: Dati: 0.02MB + indice: 0.02MB + motore InnoDB
wp208_a4barcode_custom_formats: Dati: 0.02MB + indice: 0.00MB + motore InnoDB
wp208_a4barcode_custom_templates: Dati: 0.02MB + indice: 0.00MB + motore InnoDB
wp208_a4barcode_paper_formats: Dati: 0.02MB + indice: 0.00MB + motore InnoDB
wp208_berocket_termmeta: Dati: 0.02MB + indice: 0.00MB + motore InnoDB
wp208_cartflows_ca_cart_abandonment: Dati: 0.02MB + indice: 0.02MB + motore InnoDB
wp208_cartflows_ca_email_history: Dati: 0.02MB + indice: 0.03MB + motore InnoDB
wp208_cartflows_ca_email_templates: Dati: 0.02MB + indice: 0.00MB + motore InnoDB
wp208_cartflows_ca_email_templates_meta: Dati: 0.02MB + indice: 0.02MB + motore InnoDB
wp208_commentmeta: Dati: 0.02MB + indice: 0.03MB + motore InnoDB
wp208_comments: Dati: 0.33MB + indice: 0.52MB + motore InnoDB
wp208_feedmanager_channel: Dati: 0.02MB + indice: 0.03MB + motore InnoDB
wp208_feedmanager_country: Dati: 0.02MB + indice: 0.03MB + motore InnoDB
wp208_feedmanager_feed_status: Dati: 0.02MB + indice: 0.03MB + motore InnoDB
wp208_feedmanager_field_categories: Dati: 0.02MB + indice: 0.00MB + motore InnoDB
wp208_feedmanager_product_feed: Dati: 0.02MB + indice: 0.02MB + motore InnoDB
wp208_feedmanager_product_feedmeta: Dati: 0.02MB + indice: 0.03MB + motore InnoDB
wp208_feedmanager_source: Dati: 0.02MB + indice: 0.03MB + motore InnoDB
wp208_links: Dati: 0.02MB + indice: 0.02MB + motore InnoDB
wp208_options: Dati: 5.09MB + indice: 0.20MB + motore InnoDB
wp208_postmeta: Dati: 5.34MB + indice: 2.92MB + motore InnoDB
wp208_posts: Dati: 2.27MB + indice: 0.45MB + motore InnoDB
wp208_social_users: Dati: 0.02MB + indice: 0.02MB + motore InnoDB
wp208_termmeta: Dati: 0.02MB + indice: 0.03MB + motore InnoDB
wp208_terms: Dati: 0.05MB + indice: 0.03MB + motore InnoDB
wp208_term_relationships: Dati: 0.11MB + indice: 0.06MB + motore InnoDB
wp208_term_taxonomy: Dati: 0.05MB + indice: 0.03MB + motore InnoDB
wp208_usermeta: Dati: 0.06MB + indice: 0.03MB + motore InnoDB
wp208_users: Dati: 0.02MB + indice: 0.05MB + motore InnoDB
wp208_wc_admin_notes: Dati: 0.02MB + indice: 0.00MB + motore InnoDB
wp208_wc_admin_note_actions: Dati: 0.02MB + indice: 0.02MB + motore InnoDB
wp208_wc_category_lookup: Dati: 0.02MB + indice: 0.00MB + motore InnoDB
wp208_wc_customer_lookup: Dati: 0.02MB + indice: 0.03MB + motore InnoDB
wp208_wc_download_log: Dati: 0.02MB + indice: 0.03MB + motore InnoDB
wp208_wc_order_coupon_lookup: Dati: 0.02MB + indice: 0.03MB + motore InnoDB
wp208_wc_order_product_lookup: Dati: 0.02MB + indice: 0.06MB + motore InnoDB
wp208_wc_order_stats: Dati: 0.02MB + indice: 0.05MB + motore InnoDB
wp208_wc_order_tax_lookup: Dati: 0.02MB + indice: 0.03MB + motore InnoDB
wp208_wc_product_meta_lookup: Dati: 0.06MB + indice: 0.09MB + motore InnoDB
wp208_wc_tax_rate_classes: Dati: 0.02MB + indice: 0.02MB + motore InnoDB
wp208_wc_webhooks: Dati: 0.02MB + indice: 0.02MB + motore InnoDB
wp208_wpf_filters: Dati: 0.02MB + indice: 0.00MB + motore InnoDB
wp208_wpml_mails: Dati: 1.52MB + indice: 0.00MB + motore InnoDB
wp208_yith_wcwl: Dati: 0.02MB + indice: 0.02MB + motore InnoDB
wp208_yith_wcwl_lists: Dati: 0.02MB + indice: 0.05MB + motore InnoDB
wp208_yoast_seo_links: Dati: 0.05MB + indice: 0.02MB + motore InnoDB
wp208_yoast_seo_meta: Dati: 0.05MB + indice: 0.00MB + motore InnoDB

### Security ###

Secure connection (HTTPS): ?
Hide errors from visitors: ?

### Active Plugins (28) ###

Art Woocommerce Custom Sale: by Artem Abramovich – 1.1.1 – Non testato con la versione attiva di WooCommerce
Clever Addons for Elementor: by CleverSoft – 1.0.0
Consenso al cookie GDPR: by WebToffee – 1.8.2
Elementor Pro: by Elementor.com – 2.7.3
Elementor: by Elementor.com – 2.8.2
Facebook for WooCommerce: by Facebook – 1.9.15 – Non testato con la versione attiva di WooCommerce
Jetpack by WordPress.com: by Automattic – 8.0
Kadence WooCommerce Email Designer: by Kadence WP – 1.3.7 – Non testato con la versione attiva di WooCommerce
Kirki Customizer Framework: by Ari Stathopoulos (@aristath) – 3.0.45
LoginPress – Customizing the WordPress Login: by WPBrigade – 1.4.1
MailChimp: by MailChimp – 1.5.7
Max Mega Menu: by megamenu.com – 2.7.3
Slider Custom Post Type: by Themes Kingdom – 1.0
Perfect WooCommerce Brands: by Alberto de Vera Sevilla – 1.7.7 – Non testato con la versione attiva di WooCommerce
TK Shortcodes: by ThemesKingdom – 2.0
WooCommerce Cart Abandonment Recovery: by CartFlows Inc – 1.2.3 – Non testato con la versione attiva di WooCommerce
Variation Swatches for WooCommerce: by Emran Ahmed – 1.0.69 – Non testato con la versione attiva di WooCommerce
WooCommerce Admin: by WooCommerce – 0.23.1 – Non testato con la versione attiva di WooCommerce
WooCommerce Extra Charges To Payment Gateway (Standard): by hemsingh1 – 1.0.12.9 – Non testato con la versione attiva di WooCommerce
WooCommerce Stripe Gateway: by WooCommerce – 4.3.1 – Non testato con la versione attiva di WooCommerce
WooCommerce Product SKU Generator: by SkyVerge – 2.4.1 – Non testato con la versione attiva di WooCommerce
WooCommerce: by Automattic – 3.8.1
WooLentor – WooCommerce Elementor Addons + Builder: by HasThemes – 1.5.0 – Non testato con la versione attiva di WooCommerce
Yoast SEO Premium: by Team Yoast – 12.7.1
WP Mail Logging: by MailPoet – 1.9.5
WP Product Feed Manager: by Michel Jongbloed – 1.18.1
Yoast SEO: WooCommerce: by Team Yoast – 12.4 – Non testato con la versione attiva di WooCommerce
YITH WooCommerce Wishlist: by YITH – 3.0.3 – Non testato con la versione attiva di WooCommerce

### Inactive Plugins (3) ###

Clever Mega Menu Pro for Elementor: by CleverSoft – 1.0.5
Wordfence Security: by Wordfence – 7.4.2
Yoast SEO: by Team Yoast – 12.7.1

### Must Use Plugins (1) ###

Aruba WordPress checker: by https://www.aruba.it – 11

### Settings ###

API Enabled: –
Force SSL: –
Currency: EUR (€)
Currency Position: right
Thousand Separator: .
Decimal Separator: ,
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: –

### WC Pages ###

Shop base: #9 – /shop/
Carrello: #10 – /carrello/
Cassa: #11 – /checkout/
Il mio account: ? La pagina non contiene lo shortcode.
Termini e condizioni: #501 – /termini-condizioni/

### Theme ###

Name: Astra
Version: 2.1.4
Author URL: https://wpastra.com/about/
Child Theme: ? – Se stai modificando WooCommerce o un tema genitore che non hai costruito personalmente
ti consigliamo di utilizzare un tema child. Vedi: Come creare un tema child

WooCommerce Support: ?

### Templates ###

Overrides: –

### Action Scheduler ###

Complete: 733
Oldest: 2019-11-16 12:02:58 +0000
Newest: 2019-12-17 11:23:25 +0000

Pending: 1
Oldest: 2019-12-17 12:23:25 +0000
Newest: 2019-12-17 12:23:25 +0000

Canceled: 0
Oldest: –
Newest: –

In-progress: 0
Oldest: –
Newest: –

Failed: 0
Oldest: –
Newest: –

Thanks for your help
Gianmarco

HI @gguidi ,

Thank you for sharing the system status report. Based on the status report – I do not see anything wrong – WordPress, WooCommerce, Facebook for WooCommerce and WooCommerce Database on your site are up to date.

This is likely caused by a conflict with your theme or with another plugin.

The best way to determine if the issue is being caused by a theme and/or plugin is to temporarily switch your theme to Storefront (https://woocommerce.com/storefront/?aff=10486&cid=1131038) and disable all plugins except for WooCommerceand Facebook for WooCommerce. Finally, test to see if the issue is resolved by refreshing the page and checking if you still see the error.

To figure out which plugin is causing the problem, continue to the next step – reactivate your other plugins one by one, testing after each, until you find the one causing conflict.

Here’s a more extensive explanation in our docs: https://docs.woocommerce.com/document/how-to-test-for-conflicts/

—–

Tools to help you troubleshoot:

Meks Quick Plugin Disabler is a plugin you can install which will remember what plugins you currently have active so it’s easy to switch them back on. Link: https://www.ads-software.com/plugins/meks-quick-plugin-disabler/

You can clone your site to a staging environment and perform tests without modifying your live site or impacting customers. Many hosts provide staging facilities, so it’s worth checking in with them. It’s also possible to do it using the free WP Staging plugin. Link: https://www.ads-software.com/plugins/wp-staging/

Hi there,

We haven’t heard from you in a while so I’ll be marking this thread as resolved.

Feel free to open a new thread and link to this one if you have further questions though.

Have a wonderful day ahead!