finally I fixed the problem with this code:
// Display Price For Variable Product With Same Variations Prices
add_filter(‘woocommerce_available_variation’, function ($value, $object = null, $variation = null) {
if ($value[‘price_html’] == ”) {
$value[‘price_html’] = ‘<span class=”price”>’ . $variation->get_price_html() . ‘</span>’;
}
return $value;
}, 10, 3);