Fix default value.

fillpdf.admin.inc

@@ -67,7 +67,7 @@ function fillpdf_settings($form, &$form_state) {
   $form['remote']['fillpdf_remote_endpoint'] = array(
     '#type' => 'textfield',
     '#title' => t('Server endpoint'),
-    '#default_value' => variable_get('fillpdf_remote_endpoint', FILLPDF_DEFAULT_SERVLET_URL),
+    '#default_value' => variable_get('fillpdf_remote_endpoint', 'fillpdf.io/xmlrpc.php'),
     '#description' => t('The endpoint for the FillPDF Service instance. This does not usually need to be changed, but you may want to if you have, for example, a <a href="https://fillpdf.io/hosting">private server</a>. Do not include the protocol, as this is determined by the <em>Use HTTPS?</em> setting below.'),
   );
   $form['remote']['fillpdf_api_key'] = array(