diff --git a/htdocs/process_email_invite.php b/htdocs/process_email_invite.php
index 1b7bf78149bdea87321f0510c038d7ee672f4aa9..624e4e149081708167c1b4598e4c59bec2fefc0b 100644
--- a/htdocs/process_email_invite.php
+++ b/htdocs/process_email_invite.php
@@ -71,7 +71,7 @@ if ( $hasRegistrationPendency ) {
 $sent = sendInviteMail($email1, $unique_key, $lang);
 if (!$sent) {
     if ($from_easy_installer) {
-        $ret = get_easy_installer_message(500);
+        $ret = get_easy_installer_message(501);
         respond_with_json($ret);
     }
     $result->type = "general";
@@ -164,7 +164,7 @@ function captcha_check($email, $from_easy_installer)
         $to_check = htmlspecialchars($_POST["check"]);
         $check = md5($email. $ei_secret);
         if ($to_check !== $check) {
-            $ret = get_easy_installer_message(500);
+            $ret = get_easy_installer_message("'$to_check' --- '$check' --- '$ei_secret'");
             respond_with_json($ret);
         }
     } else {