I want to Translate multiple languages in textarea. Translated successfully. but in textarea it shows all the code with translated data

Question

I want to Translate multiple languages in textarea. Translated successfully. but in textarea it shows all the code with translated data. It will return actual data in textarea. Please find the Error this response error

<script type="text/javascript">
        $("#trans_lang").on('click', function () {

            let inputtext = $("textarea[name='prayer_points']").val();
            let sourceLang = $(".source-lang").val();
            let targetLang = $(".target-lang").val();
            let prayerId = $("input[name='id']").val();

            let postData = {
                'text': inputtext,
                'source_lang': sourceLang,
                'target_lang': targetLang,
                'id': prayerId
            };

            $.ajax({
                url: 'editprayerpoint.php',
                type: 'post',
                data: postData,
                success: function (res) {
                    console.log("Translation Response:", res);
                    $(".output").val(res);
                },
                error: function (jqXHR, textStatus, errorThrown) {
                    console.error("AJAX Error:", textStatus, errorThrown);
                }
            });
        });


    </script>