diff --git a/src/Venom/Routing/Router.php b/src/Venom/Routing/Router.php
index 96e3881..ca5a5ce 100644
--- a/src/Venom/Routing/Router.php
+++ b/src/Venom/Routing/Router.php
@@ -106,10 +106,13 @@ class Router
 
     public function tryFunctionCall(?array $aRoute): bool
     {
-        if ($aRoute === null || !is_callable(array($aRoute['cl'], $aRoute['fnc']))) {
+        if ($aRoute === null || empty($aRoute['cl']) || empty($aRoute['fnc']) || !class_exists($aRoute['cl'])) {
             return false;
         }
         $route = new $aRoute['cl']();
+        if (!is_callable(array($route, $aRoute['fnc']))) {
+            return false;
+        }
         try {
             $fnc = $aRoute['fnc'];
             $params = $aRoute['params'] ?? [];