Uploading file errors

[eluser]Rubiz'[/eluser]
A friend of mine told me that is not a MVC pratice to interact a controller with other controller.
And I was calling the upload wrong too.

Now, I have a method who calls another method (its working) who should upload the pictures.

Now I had a progress cause I have an error message: "Unable to load the requested language file: language/upload_lang.php"

What f$%&* is this error message talking about language???????????