Build game with dll does not work properly

After I updated Unity, my built game does not work properly.

In my plugins folder in Assets, I have several .dll files (mono.dll, system.dll, etc.) which I am using for SQLite.

Entire application works, till the database connection function is called.

When I tried to build and eventually run the application on Linux, the console gave me this warning: "/dev/input/js0: open: Operation not permitted"

The strange thing is that when I build and run the application at school computer, it works. I copied the .exe file as well as the _data folder.

So my question is.. do I have to copy something else or should I change some setting in export to make it work?