Hacked By Sp20ky_WIA
Greats to: Gr00v & NESQUIK & Shin0bi_H4x0r
All files that have been deleted are viruses uploaded by other malicious hackers. You can thank us.
You just need to delete config.php file :).
If you need help to fix it you can contact us on Twitter @Sp20ky_wia or @Nesquik_io
Good luck :)