Error while executing lambda function

```
PHP Notice:  Undefined index: REQUEST_URI in /var/task/handler.php on line 17
PHP Notice:  Undefined index:  in /var/task/handler.php on line 35
PHP Notice:  Undefined index: REQUEST_URI in /var/task/handler.php on line 17
PHP Notice:  Undefined index:  in /var/task/handler.php on line 35
```

So how to resolve it shows error in handler.php file
