White screen when loading libraries

[eluser]look66[/eluser]
Good morning, I'm trying to load the lib tank_auth, the following syntax in the file autoload: $ autoload ['libraries'] = array ('database', 'session', 'tank_auth');
When I access my controllers, the entire screen appears blank

Does anyone have any idea what it might be?
Thank you!

[eluser]InsiteFX[/eluser]
If the library is passing parameters throught the constructor you cannot autoload it,