diff --git a/app/Bootstrap/ViewComposer.php b/app/Bootstrap/ViewComposer.php
index 8716ac4..39a37c2 100644
--- a/app/Bootstrap/ViewComposer.php
+++ b/app/Bootstrap/ViewComposer.php
@@ -17,12 +17,12 @@ class ViewComposer
     public function __invoke(Config $config, Twig $twig): void
     {
         $twig->getEnvironment()->getExtension(CoreExtension::class)->setDateFormat(
-            $config->get('date_format'), '%d days'
+            $config->get('date_format', 'Y-m-d H:i:s'), '%d days'
         );
 
         $twig->getEnvironment()->addFunction(
             new TwigFunction('asset', function ($path) use ($config) {
-                return "/app/themes/{$config->get('theme')}/{$path}";
+                return "/app/themes/{$config->get('theme', 'defualt')}/{$path}";
             })
         );
 
diff --git a/index.php b/index.php
index 01268b8..9592e9a 100644
--- a/index.php
+++ b/index.php
@@ -21,7 +21,7 @@ $container = new Container();
 $container->set(Config::class, new Config('app/config'));
 $container->set(Twig::class, function (Config $config) {
     return new Twig("app/themes/{$config->get('theme')}", [
-        'cache' => $config->get('view_cache')
+        'cache' => $config->get('view_cache', 'app/cache/views')
     ]);
 });