add view for error 500

views/error/500.php

@@ -0,0 +1,11 @@
+@extends(templates/layout_normal)
+
+@section(main)
+    <h2>500 | Internal server error</h2>
+    <p>An error occured during processing your request. <a href="<?= Container::$routeCollection->getRoute('index')->generateLink() ?>" title="<?= $_ENV['APP_NAME'] ?>">Back to start.</a></p>
+    <?php if (isset($exceptionToPrint)): ?>
+            <pre class="marginTop">
+<?= $exceptionToPrint ?>
+            </pre>
+    <?php endif; ?>
+@endsection