Fixes #433 fix undefined 'as_message'

admin/new_ticket.php

@@ -1160,10 +1160,11 @@ if ($modsForHesk_settings['request_location']) {
 
 // Set the message in the actual text box if rich text is enabled
 if ($modsForHesk_settings['rich_text_for_tickets']) {
+    $message = hesk_SESSION('as_message', '');
     echo "
     <script>
         tinymce.get('message').setContent('');
-        tinymce.get('message').execCommand('mceInsertRawHTML', false, '".$_SESSION['as_message']."');
+        tinymce.get('message').execCommand('mceInsertRawHTML', false, '".$message."');
     </script>
     ";
 }