Problem with opening own libraries

[eluser]erjakrobaczek[/eluser]
Hi,
I have just tried to install Authlib. I had to load Authlib and Db_session libraries to autoload, but there is an error

Code:

Unable to load the class: db_session

The same problem when I'm trying to do the same in controller.
What would causes the problem? All the files are loaded to proper directories.

[eluser]Grahack[/eluser]
Hi, did you try to look at the logs?