Error log

Hola, en mi archivo error.log no para constantemente de registrar el error a continuación, alguna sugerencia por donde tengo que empezar a revisar:

[12-Oct-2023 18:13:21 UTC] is_internal_meta_key was called incorrectly. Los métodos meta add/update/get no deberían usarse para los metadatos internos, incluido «_payment_method_title». Utiliza getters y setters. Backtrace: require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), do_action('template_redirect'), WP_Hook->do_action, WP_Hook->apply_filters, WC_AJAX::do_wc_ajax, do_action('wc_ajax_checkout'), WP_Hook->do_action, WP_Hook->apply_filters, WC_AJAX::checkout, WC_Checkout->process_checkout, WC_Checkout->process_order_payment, WC_Gateway_Stripe->process_payment, WC_Stripe_Payment_Gateway->process_response, WC_Order->payment_complete, WC_Order->save, WC_Order->status_transition, do_action('woocommerce_order_status_processing'), WP_Hook->do_action, WP_Hook->apply_filters, YITH_WooCommerce_Pdf_Invoice->create_automatic_invoice, YITH_WooCommerce_Pdf_Invoice->create_document, YITH_WooCommerce_Pdf_Invoice->create_file, YITH_WooCommerce_Pdf_Invoice->generate_template, YITH_WooCommerce_Pdf_Invoice->generate_template_pdf, YITH_WooCommerce_Pdf_Invoice->generate_template_mpdf, wc_get_template, include('/plugins/yith-woocommerce-pdf-invoice-premium/templates/yith-pdf-invoice/invoice-template.php'), do_action('yith_ywpi_template_document_data'), WP_Hook->do_action, WP_Hook->apply_filters, YITH_YWPI_Template->show_document_data, wc_get_template, include('/plugins/yith-woocommerce-pdf-invoice-premium/templates/yith-pdf-invoice/document-data.php'), do_action('yith_ywpi_template_customer_details'), WP_Hook->do_action, WP_Hook->apply_filters, YITH_YWPI_Template_Default->show_customer_details, ywpi_get_customer_details_template, YITH_WooCommerce_Pdf_Invoice->get_customer_billing_details, YITH_WooCommerce_Pdf_Invoice->replace_customer_details_pattern, WC_Data->get_meta, WC_Data->is_internal_meta_key, wc_doing_it_wrong. This message was added in version 3.2.0.

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