diff --git a/error.php b/error.php
new file mode 100644
index 0000000..5f9c887
--- /dev/null
+++ b/error.php
@@ -0,0 +1,11 @@
+<?php
+require_once "../config.php";
+\Tsugi\Core\LTIX::getConnection();
+
+use \Tsugi\Core\LTIX;
+
+$LAUNCH = LTIX::requireData();
+
+$OUTPUT->header();
+$OUTPUT->flashMessages();
+$OUTPUT->footer();
diff --git a/grade-detail.php b/grade-detail.php
index 0ba061c..06ed950 100644
--- a/grade-detail.php
+++ b/grade-detail.php
@@ -23,7 +23,7 @@
 
 if ( ! $user_id ) {
     $_SESSION['error'] = 'User has no submission';
-    header( 'Location: '.addSession("grades.php") ) ;
+    header( 'Location: '.addSession("error.php") ) ;
     return;
 }