elisabetha on "polylang 404 page in 2 languages"

I solved it like this in 404.php:

<p><?php $taal=pll_current_language($value);?>

<article id="post-0" class="post error404 not-found">
<h1 class="entry-title">
<?php if ($taal =="nl") {
echo "Niet gevonden" ;}
?>
<?php if ($taal =="en") {
echo "Not Found" ;}
?></h1>

etc.