Dmitry

It may be useful to anyone but there was a problem with wc-cart-fragments and SessionStorage:

wc-cart-fragments'          => array(
				'src'     => self::get_asset_url( 'assets/js/frontend/cart-fragments' . $suffix . '.js' ),
				'deps'    => array( 'jquery', 'js-cookie' ),
				'version' => WC_VERSION,
			)

you need to disable the connection of this script:

add_action( 'wp_print_scripts', 'de_script', 100 );

function de_script() {
    wp_dequeue_script( 'wc-cart-fragments' );

    return true;
}

Disabled caching on the website and the server, cleaned the cache, the problem remains ((( actually in the basket or what not, does not work after the payment:

function wc_mini_cart_refresh( $fragments ) {
			global $woocommerce;
			ob_start();
				?>
					<span class='woo_mini-count flaticon-shopcart-icon'><?php echo ((WC()->cart->cart_contents_count > 0) ?  '<span>' . esc_html( WC()->cart->cart_contents_count ) .'</span>' : '') ?></span>
				<?php
				$fragments['.woo_mini-count'] = ob_get_clean();

				ob_start();
				woocommerce_mini_cart();
				$fragments['div.woo_mini_cart'] = ob_get_clean();

				return $fragments;
		}	

Prompt the solution of a problem

I welcome, to be honest I did not quite understand what kind of file you need to create and what should be in this file.