Database connection error

[eluser]dsp77[/eluser]
when i access my main page i receive:

Code:

A Database Error Occurred

Unable to connect to your database server using the provided settings.

Filename: core/Loader.php

Line Number: 232

i used the debugging code above and got:

Code:

Array
(
    [hostname] => localhost
    [username] => dwerud4_ci
    [password] => 2q3JW^A}a2e9
    [database] => dwerud4_ci
    [dbdriver] => mysql
    [dbprefix] =>
    [pconnect] => 1
    [db_debug] => 1
    [cache_on] =>
    [cachedir] =>
    [char_set] => utf8
    [dbcollat] => utf8_general_ci
    [swap_pre] =>
    [autoinit] => 1
    [stricton] =>
)

Line: 111 : Connected OK
Success

The problem is the host?