edit

lib/Base.php

@@ -160,7 +160,7 @@ class Base
     private function createCode()
     {
         $len = isset($this->config['code_length']) ? $this->config['code_length'] : 4;
-        $type = isset($this->config['code_type']) ? $this->config['code_type'] : 4;
+        $type = isset($this->config['code_type']) ? $this->config['code_type'] : 1;
         return Dever::rand($len, $type - 1);
     }
 }