er( $wp_taxonomies[ $taxonomy ]->labels->name ) . '</strong>',
					'<strong>' . mb_strtolower( $wp_post_types[ $object_type ]->labels->name ) . '</strong>'
				) . '</a>' .
					'&nbsp;<img src="' . \WCML\functions\assetLink( '/res/img/ajax-loader.gif' ) . '" alt="loading" height="16" width="16" class="wcml_tt_spinner" />';
				$out .= '</form>';
			} else {
				$out .= sprintf(
					/* translators: %1$s is a taxonomy name and %2$s is a post type name */
					__( 'All %1$s have the same %2$s assignments.', 'woocommerce-multilingual' ),
					'<strong>' . mb_strtolower( $wp_taxonomies[ $taxonomy ]->labels->name ) . '</strong>',
					'<strong>' . mb_strtolower( $wp_post_types[ $object_type ]->labels->name ) . '</strong>'
				);
			}
			$out .= '</div>';

		} else {
			$out .= sprintf(
				/* translators: %1$s is a taxonomy name and %2$s is a post type name */
				__( 'Successfully updated %1$s for all translated %2$s.', 'woocommerce-multilingual' ),
				$wp_taxonomies[ $taxonomy ]->labels->name,
				$wp_post_types[ $object_type ]->labels->name
			);

		}

		return $out;
	}

	/**
	 * Filter shipping terms
	 *
	 * @param WP_Term[]|false|WP_Error $terms    Terms to filter.
	 * @param int                      $post_id  Post ID.
	 * @param string                   $taxonomy Taxonomy.
	 *
	 * @return WP_Term[]|false|WP_Error
	 */
	public function shipping_terms( $terms, $post_id, $taxonomy ) {
		global $pagenow;

		if (
			'post.php' === $pagenow ||
			self::PRODUCT_SHIPPING_CLASS !== $taxonomy ||
			( isset( $_POST['action'] ) && 'woocommerce_load_variations' === $_POST['action'] ) ) {
			return $terms;
		}

		$post_type = get_post_type( $post_id );
		if ( ! in_array( $post_type, [ 'product', 'product_variation' ], true ) ) {
			return $terms;
		}

		$current_language = $this->sitepress->get_current_language();
		$key              = md5( wp_json_encode( [ $post_id, $current_language ] ) );
		$found            = false;
		$terms            = WPML_Non_Persistent_Cache::get( $key, __CLASS__, $found );
		if ( ! $found ) {
			remove_filter( 'get_the_terms', [ $this, 'shipping_terms' ], 10 );
			$terms = get_the_terms(
				apply_filters( 'wpml_object_id', $post_id, $post_type, true, $current_language ),
				self::PRODUCT_SHIPPING_CLASS
			);
			add_filter( 'get_the_terms', [ $this, 'shipping_terms' ], 10, 3 );
			WPML_Non_Persistent_Cache::set( $key, $terms, __CLASS__ );
		}

		return $terms;
	}

	public function filter_shipping_classes_terms( $terms, $taxonomies, $args ) {

		if ( $taxonomies && is_admin() && in_array( self::PRODUCT_SHIPPING_CLASS, $taxonomies ) ) {
			$on_wc_settings_page = isset( $_GET['page'] ) && \WCML\Utilities\AdminUrl::PAGE_WOO_SETTINGS === $_GET['page'];
			$on_shipping_tab     = isset( $_GET['tab'] ) && $_GET['tab'] === 'shipping';
			$on_classes_section  = isset( $_GET['section'] ) && $_GET['section'] === 'classes';

			if ( $on_wc_settings_page && $on_shipping_tab && ! $on_classes_section ) {
				remove_filter( 'get_terms', [ $this, 'filter_shipping_classes_terms' ] );
				$this->sitepress->switch_lang( $this->sitepress->get_default_language() );
				$terms = get_terms( $args );
				add_filter( 'get_terms', [ $this, 'filter_shipping_classes_terms' ], 10, 3 );
				$this->sitepress->switch_lang();
			}
		}

		return $terms;
	}

	public function wcml_delete_term( $term, $tt_id, $taxonomy, $deleted_term ) {
		global $wp_taxonomies;

		foreach ( $wp_taxonomies as $key => $taxonomy_obj ) {
			if ( ( in_array( 'product', $taxonomy_obj->object_type ) || in_array( 'product_variation', $taxonomy_obj->object_type ) ) && $key == $taxonomy ) {
				$this->update_terms_translated_status( $taxonomy );
				break;
			}
		}

	}

	/**
	 * @param array  $terms
	 * @param int    $product_id
	 * @param string $taxonomy
	 * @param array  $args
	 *
	 * @return array
	 */
	public function get_product_terms_filter( $terms, $product_id, $taxonomy, $args ) {

		$language = $this->sitepress->get_language_for_element( $product_id, 'post_' . get_post_type( $product_id ) );

		$is_objects_array = is_object( current( $terms ) );

		$filtered_terms = [];

		foreach ( $terms as $term ) {

			if ( ! $is_objects_array ) {
				$term_obj = get_term_by( 'name', $term, $taxonomy );

				$is_wc_filtering_by_slug = isset( $args['fields'] ) && in_array( $args['fields'], [ 'id=>slug', 'slugs' ] );
				if ( $is_wc_filtering_by_slug || ! $term_obj ) {
					$term_obj = get_term_by( 'slug', $term, $taxonomy );
					$is_slug  = true;
				}
			}

			if ( empty( $term_obj ) ) {
				$filtered_terms[] = $term;
				continue;
			}

			$trnsl_term_id = apply_filters( 'wpml_object_id', $term_obj->term_id, $taxonomy, true, $language );

			if ( $is_objects_array ) {
				$filtered_terms[] = get_term( $trnsl_term_id, $taxonomy );
			} else {
				if ( isset( $is_slug ) ) {
					$filtered_terms[] = get_term( $trnsl_term_id, $taxonomy )->slug;
				} else {
					$filtered_terms[] = ( wp_doing_ajax() && isset( $_POST['action'] ) && in_array(
						$_POST['action'],
						[
							'woocommerce_add_variation',
							'woocommerce_link_all_variations',
						]
					) ) ? strtolower( get_term( $trnsl_term_id, $taxonomy )->name ) : get_term( $trnsl_term_id, $taxonomy )->name;
				}
			}
		}

		return $filtered_terms;
	}

	public function set_flag_to_sync( $taxonomy, $el_id, $language_code ) {
		if ( $el_id ) {
			$elem_details = $this->sitepress->get_element_language_details( $el_id, 'tax_' . $taxonomy );
			if ( null !== $elem_details->source_language_code ) {
				$this->check_if_sync_term_translation_needed( $el_id, $taxonomy );
			}
		}
	}

	public function check_if_sync_terms_needed() {

		$wcml_settings                                = $this->woocommerce_wpml->get_settings();
		$wcml_settings['sync_variations']             = 0;
		$wcml_settings['sync_product_cat']            = 0;
		$wcml_settings['sync_product_tag']            = 0;
		$wcml_settings['sync_product_shipping_class'] = 0;
		$this->woocommerce_wpml->update_settings( $wcml_settings );

		$taxonomies_to_check = [ WCTaxonomies::TAXONOMY_PRODUCT_CATEGORY, WCTaxonomies::TAXONOMY_PRODUCT_TAG, self::PRODUCT_SHIPPING_CLASS ];

		foreach ( $taxonomies_to_check as $check_taxonomy ) {
			$terms = get_terms(
				$check_taxonomy,
				[ 'hide_empty' => false ]
			);
			if ( is_array( $terms ) ) {
				/** @var WP_Term $term */
				foreach ( $terms as $term ) {
					if ( $this->check_if_sync_term_translation_needed( $term->term_taxonomy_id, $check_taxonomy ) ) {
						break;
					}
				}
			}
		}

		$attribute_taxonomies = wc_get_attribute_taxonomies();
		$flag_set             = false;
		foreach ( $attribute_taxonomies as $a ) {

			$terms = get_terms(
				WCTaxonomies::TAXONOMY_PREFIX_ATTRIBUTE . $a->attribute_name,
				[ 'hide_empty' => false ]
			);
			if ( is_array( $terms ) ) {
				/** @var WP_Term $term */
				foreach ( $terms as $term ) {
					$flag_set = $this->check_if_sync_term_translation_needed( $term->term_taxonomy_id, WCTaxonomies::TAXONOMY_PREFIX_ATTRIBUTE . $a->attribute_name );
					if ( $flag_set ) {
						break;
					}
				}
			}

			if ( $flag_set ) {
				break;
			}
		}

	}

	public function check_if_sync_term_translation_needed( $t_id, $taxonomy ) {

		$wcml_settings = $this->woocommerce_wpml->get_settings();

		$attribute_taxonomies     = wc_get_attribute_taxonomies();
		$attribute_taxonomies_arr = [];
		foreach ( $attribute_taxonomies as $a ) {
			$attribute_taxonomies_arr[] = WCTaxonomies::TAXONOMY_PREFIX_ATTRIBUTE . $a->attribute_name;
		}

		if ( ( isset( $wcml_settings[ 'sync_' . $taxonomy ] ) && $wcml_settings[ 'sync_' . $taxonomy ] ) || ( in_array( $taxonomy, $attribute_taxonomies_arr ) && isset( $wcml_settings['sync_variations'] ) && $wcml_settings['sync_variations'] ) ) {
			return true;
		}

		$translations = $this->wpdb->get_results( $this->wpdb->prepare( "SELECT t2.element_id, t2.source_language_code FROM {$this->wpdb->prefix}icl_translations AS t1 LEFT JOIN {$this->wpdb->prefix}icl_translations AS t2 ON t1.trid = t2.trid WHERE t1.element_id = %d AND t1.element_type = %s ", $t_id, 'tax_' . $taxonomy ) );

		foreach ( $translations as $key => $translation ) {
			if ( is_null( $translation->source_language_code ) ) {
				$original_count = $this->wpdb->get_var( $this->wpdb->prepare( "SELECT count( object_id ) FROM {$this->wpdb->term_relationships} WHERE term_taxonomy_id = %d ", $translation->element_id ) );
				unset( $translations[ $key ] );
			}
		}

		foreach ( $translations as $translation ) {

			$count = $this->wpdb->get_var( $this->wpdb->prepare( "SELECT count( object_id ) FROM {$this->wpdb->term_relationships} WHERE term_taxonomy_id = %d ", $translation->element_id ) );
			if ( isset( $original_count ) && $original_count != $count ) {

				if ( in_array( $taxonomy, [ WCTaxonomies::TAXONOMY_PRODUCT_CATEGORY, WCTaxonomies::TAXONOMY_PRODUCT_TAG, self::PRODUCT_SHIPPING_CLASS ] ) ) {
					$wcml_settings[ 'sync_' . $taxonomy ] = 1;
					$this->woocommerce_wpml->update_settings( $wcml_settings );
					return true;
				}

				if ( in_array( $taxonomy, $attribute_taxonomies_arr ) ) {
					$wcml_settings['sync_variations'] = 1;
					$this->woocommerce_wpml->update_settings( $wcml_settings );
					return true;
				}
			}
		}

	}

	public function get_table_taxonomies( $taxonomies ) {

		foreach ( $taxonomies as $key => $taxonomy ) {
			if ( ! WCTaxonomies::isProductAttribute( $key ) ) {
				unset( $taxonomies[ $key ] );
			}
		}

		return $taxonomies;
	}

	public function get_wc_taxonomies() {

		global $wp_taxonomies;
		$taxonomies = [];

		// don't use get_taxonomies for product, because when one more post type registered for product taxonomy functions returned taxonomies only for product type.
		foreach ( $wp_taxonomies as $key => $taxonomy ) {

			if (
				( in_array( 'product', $taxonomy->object_type ) || in_array( 'product_variation', $taxonomy->object_type ) ) &&
				! in_array( $key, $taxonomies )
			) {

				if ( WCTaxonomies::isProductAttribute( $key ) && ! $this->woocommerce_wpml->attributes->is_translatable_attribute( $key ) ) {
					continue;
				}

				$taxonomies[] = $key;
			}
		}

		return $taxonomies;

	}

	public function has_wc_taxonomies_to_translate() {

		$taxonomies = $this->get_wc_taxonomies();

		$no_tax_to_trnls = false;
		foreach ( $taxonomies as $taxonomy ) {

			$is_fully_translated = 0 === $this->get_untranslated_terms_number( $taxonomy );
			if (
				! $this->is_translatable_wc_taxonomy( $taxonomy ) ||
				$is_fully_translated
			) {
				continue;
			} else {
				$no_tax_to_trnls = true;
			}
		}

		return $no_tax_to_trnls;

	}

	/*
	* Use custom query, because get_term_by function return false for terms with "0" slug      *
	*/
	public function wcml_get_term_id_by_slug( $taxonomy, $slug ) {

		return $this->wpdb->get_var(
			$this->wpdb->prepare(
				"SELECT tt.term_id FROM {$this->wpdb->terms} AS t
                        INNER JOIN {$this->wpdb->term_taxonomy} AS tt
                        ON t.term_id = tt.term_id
                        WHERE tt.taxonomy = %s AND t.slug = %s LIMIT 1",
				$taxonomy,
				sanitize_title( $slug )
			)
		);
	}

	public function wcml_get_term_by_id( $term_id, $taxonomy ) {

		return $this->wpdb->get_row(
			$this->wpdb->prepare(
				"
                        SELECT * FROM {$this->wpdb->terms} t
                        JOIN {$this->wpdb->term_taxonomy} x
                        ON x.term_id = t.term_id
                        WHERE t.term_id = %d AND x.taxonomy = %s",
				$term_id,
				$taxonomy
			)
		);
	}

	public function wcml_get_translated_term( $term_id, $taxonomy, $language ) {

		$tr_id = apply_filters( 'wpml_object_id', $term_id, $taxonomy, false, $language );

		if ( ! is_null( $tr_id ) ) {
			$term_id = $tr_id;
		}

		return $this->wcml_get_term_by_id( $term_id, $taxonomy );
	}

	public function is_translatable_wc_taxonomy( $taxonomy ) {
		if ( in_array( $taxonomy, [ 'product_type', 'product_visibility' ], true ) ) {
			return false;
		}

		return true;
	}

	public function pre_option_default_product_cat() {

		$lang = $this->sitepress->get_current_language();

		$lang          = $lang === 'all' ? $this->sitepress->get_default_language() : $lang;
		$wcml_settings = $this->woocommerce_wpml->get_settings();
		$ttid          = isset( $wcml_settings['default_categories'][ $lang ] ) ? (int) $wcml_settings['default_categories'][ $lang ] : 0;

		return $ttid === 0
			? false : $this->wpdb->get_var(
				$this->wpdb->prepare(
					"SELECT term_id
		                     FROM {$this->wpdb->term_taxonomy}
		                     WHERE term_taxonomy_id= %d
		                     AND taxonomy='product_cat'",
					$ttid
				)
			);
	}

	public function update_option_default_product_cat( $oldvalue, $new_value ) {
		$new_value     = $this->wpdb->get_var( $this->wpdb->prepare( "SELECT term_taxonomy_id FROM {$this->wpdb->term_taxonomy} WHERE taxonomy='product_cat' AND term_id=%d", $new_value ) );
		$translations  = $this->sitepress->get_element_translations( $this->sitepress->get_element_trid( $new_value, 'tax_product_cat' ) );
		$wcml_settings = $this->woocommerce_wpml->get_settings();

		if ( ! empty( $translations ) ) {
			foreach ( $translations as $t ) {
				$wcml_settings['default_categories'][ $t->language_code ] = $t->element_id;
			}
			if ( isset( $wcml_settings ) ) {
				$this->woocommerce_wpml->update_settings( $wcml_settings );
			}
		}
	}

	/**
	 * @param string $key
	 *
	 * @return string
	 */
	public function add_lang_parameter_to_cache_key( $key ) {
		return $key . '-' . $this->sitepress->get_current_language();
	}
}
<br />
<b>Fatal error</b>:  Uncaught Error: Class &quot;WCML_Terms&quot; not found in /home/sandrova/public_html/vaniniwpsite/wp-content/plugins/woocommerce-multilingual/classes/class-woocommerce-wpml.php:245
Stack trace:
#0 /home/sandrova/public_html/vaniniwpsite/wp-content/plugins/woocommerce-multilingual/classes/class-woocommerce-wpml.php(203): woocommerce_wpml-&gt;init_full(Object(SitePress), Object(wpdb), Object(WooCommerce), Object(WPML_URL_Cached_Converter), Object(WPML_Frontend_Post_Actions), Object(WPML_Term_Translation))
#1 /home/sandrova/public_html/vaniniwpsite/wp-includes/class-wp-hook.php(324): woocommerce_wpml-&gt;init('')
#2 /home/sandrova/public_html/vaniniwpsite/wp-includes/class-wp-hook.php(348): WP_Hook-&gt;apply_filters(NULL, Array)
#3 /home/sandrova/public_html/vaniniwpsite/wp-includes/plugin.php(517): WP_Hook-&gt;do_action(Array)
#4 /home/sandrova/public_html/vaniniwpsite/wp-settings.php(700): do_action('init')
#5 /home/sandrova/public_html/vaniniwpsite/wp-config.php(98): require_once('/home/sandrova/...')
#6 /home/sandrova/public_html/vaniniwpsite/wp-load.php(50): require_once('/home/sandrova/...')
#7 /home/sandrova/public_html/vaniniwpsite/wp-blog-header.php(13): require_once('/home/sandrova/...')
#8 /home/sandrova/public_html/index.php(17): require('/home/sandrova/...')
#9 {main}
  thrown in <b>/home/sandrova/public_html/vaniniwpsite/wp-content/plugins/woocommerce-multilingual/classes/class-woocommerce-wpml.php</b> on line <b>245</b><br />