Oxygen Builder PHP Schema

Dear Support,

we use Oxygen Builder to echo out our Schema Data in JSON. The default version is working but the translated version echo out:

<script type="application/ld+json">null</script></div>

The PHP that isn’t working is:

<?php
 global $woocommerce;
  $product = wc_get_product( get_the_ID() );

  if ( $product === false ) {
    return;
  }
	
  	$schemades = strip_tags($product->get_description() ); 
	$schemaprod = $product->get_name();

?>
<script type="application/ld+json">
{
  "@context" : "http://schema.org",
  "@type" : "Product",
  "name" : "<?php echo addslashes($schemaprod); ?>",
  "description" : "<?php echo addslashes($schemades); ?>"
}
</script>

I get following PHP warning as well:
Warning: Invalid argument supplied for foreach() in wp-content/plugins/weglot/vendor/weglot/weglot-php/src/Parser/Check/Regex/JsonChecker.php on line 108

This PHP code is working:

<?php
 global $woocommerce;
  $product = wc_get_product( get_the_ID() );

  if ( $product === false ) {
    return;
  }
	
?>
<script type="application/ld+json">
{
  "@context" : "http://schema.org",
  "@type" : "Product",
  "name" : "<?php echo addslashes($schemaprod); ?>"
}
</script>

I already tried to strip away the special characters but that doesn’t work as well. The following HTML/JSON gets echo out in the default language:

"description" : "Edelstahl trifft Segeltau. Die „OSKAR“ in marineblau rot weiss. Kompromisslos, stabil im maritimen Look. gepaart mit einem verkapselten Edelstahl-Magnetverschluss – entwickelt & konstruiert von Brand®.

 	extra starker Halt
 	6mm Ø (Segeltau Durchmesser)
 	handgefertigte & passgenaue Qualität
 	nickelfrei
 	wasserfest & rostfrei
 	beständige & abriebfeste Gravur
 	Kompassgravur im Verschluss
 	komfortabel & anschmiegsam
 	für Damen und Herren
 	zügig geliefert im schicken Geschenkkarton
",

Thank you very much,

Robert