Path:
/home/grzeg107/public_html/e-mydlarnia.pl/index.php (line 7):
require('/home/grzeg107/public_html/e-mydlarnia.pl/db_con.php');

/home/grzeg107/public_html/e-mydlarnia.pl/db_con.php (line 10):
connect(#hash)

Report:
I cannot connect to the MySQL server because: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)