yes, I added a few lines for the WooCommerce and the ones you sent me to open the Instagram links on a blank page. However, I tried erasing all those lines and leaving only the default ones, but with no results, even after suspending all transients.

This is the code I have in the child functions.php

<?php

add_action( 'wp_enqueue_scripts', 'basel_child_enqueue_styles', 1000 );

function basel_child_enqueue_styles() {
	$version = basel_get_theme_info( 'Version' );
	
	if( basel_get_opt( 'minified_css' ) ) {
		wp_enqueue_style( 'basel-style', get_template_directory_uri() . '/style.min.css', array('bootstrap'), $version );
	} else {
		wp_enqueue_style( 'basel-style', get_template_directory_uri() . '/style.css', array('bootstrap'), $version );
	}
	
    wp_enqueue_style( 'child-style', get_stylesheet_directory_uri() . '/style.css', array('bootstrap'), $version );
}

function woodmart_display_product_attributes() {
	global $product;
	wc_display_product_attributes( $product );
}
/*remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_excerpt', 20 );*/
add_action( 'woocommerce_single_product_summary', 'woodmart_display_product_attributes', 20 );

add_filter( 'woocommerce_product_tabs', 'woo_remove_product_tabs', 98 );

function woo_remove_product_tabs( $tabs ) {

    unset( $tabs['additional_information'] );  	// Remove the additional information tab

    return $tabs;

}

/*INSTAGRAM BLANK*/
function basel_product_instagram() {
		$hashtag = get_post_meta(get_the_ID(),  '_basel_product_hashtag', true );
		if( empty( $hashtag ) ) return;
		?>
			<div class="basel-product-instagram">
				<p class="product-instagram-intro"><?php printf( wp_kses( __('Tag your photos with <span>%s</span> on Instagram.', 'basel') , array('span' => array())), $hashtag ); ?></p>
				<?php echo basel_shortcode_instagram( array(
					'username' => esc_html( $hashtag ),
					'number' => 8,
					'size' => 'large',
					'target' => '_blank',
					'design' => '',
					'spacing' => 0,
					'rounded' => 0,
					'per_row' => 4
				) ); ?>
			</div>
		<?php
	}
/*WOOCOMMERCE COD UNICO*/
add_filter( 'wc_product_has_unique_sku', '__return_false' );