fix: typo

src/Utils/Configuration/Configuration.php

@@ -155,7 +155,7 @@ class Configuration {
     {
         foreach ($keys as $k) {
             if (!is_array($data)) {
-                throw new \Exception("Try to access non-array as array, key '$key''");
+                throw new \Exception("Try to access non-array as array, key '$k''");
             }
             if (!isset($data[$k])) {
                 return $default;