First of all I gotta say I'm sorry, because some errors that I've posted are in Spanish.
2)There's a `problem with the server configuration... got out with the state 256.
4) The panel has found a problem while it was loading....
I rebooted my laptop, I couldn't use the login window, but I could use the virtual terminal as root
and I used:
chown -R fermin:fermin /home/fermin
as you said, but it's still not working, I've got the same errors and same problem.
Maybe you need something else like a error log or whatever, just ask me please , I would hate to reinstall the OS...