SQL/DB Error -- [
    Error establishing a database connection!
  1. Are you sure you have the correct user/password?
  2. Are you sure that you have typed the correct hostname?
  3. Are you sure that the database server is running?
]
Array
(
    [0] => Array
        (
            [file] => /home/archcra/public_html/wp/wp-includes/wp-db.php
            [line] => 57
            [function] => print_error
            [class] => wpdb
            [object] => wpdb Object
                (
                    [debug_called] => 
                    [vardump_called] => 
                    [show_errors] => 1
                    [num_queries] => 0
                    [debug_all] => 
                    [last_query] => 
                    [col_info] => 
                    [dbh] => 
                )

            [type] => ->
            [args] => Array
                (
                    [0] => 
    Error establishing a database connection!
  1. Are you sure you have the correct user/password?
  2. Are you sure that you have typed the correct hostname?
  3. Are you sure that the database server is running?
) ) [1] => Array ( [file] => /home/archcra/public_html/wp/wp-includes/wp-db.php [line] => 573 [function] => wpdb [class] => wpdb [object] => wpdb Object ( [debug_called] => [vardump_called] => [show_errors] => 1 [num_queries] => 0 [debug_all] => [last_query] => [col_info] => [dbh] => ) [type] => -> [args] => Array ( [0] => wpuser [1] => wpus3r [2] => wp [3] => database [4] => 5432 ) ) [2] => Array ( [file] => /home/archcra/public_html/wp/wp-settings.php [line] => 30 [args] => Array ( [0] => /home/archcra/public_html/wp/wp-includes/wp-db.php ) [function] => require_once ) [3] => Array ( [file] => /home/archcra/public_html/wp/wp-config.php [line] => 33 [args] => Array ( [0] => /home/archcra/public_html/wp/wp-settings.php ) [function] => require_once ) [4] => Array ( [file] => /home/archcra/public_html/wp/wp-blog-header.php [line] => 6 [args] => Array ( [0] => /home/archcra/public_html/wp/wp-config.php ) [function] => require_once ) [5] => Array ( [file] => /home/archcra/public_html/wp/index.php [line] => 3 [args] => Array ( [0] => /home/archcra/public_html/wp/wp-blog-header.php ) [function] => require ) )
It doesn't look like you've installed WP yet. Try running install.php.