tilen on "new installation, blank screen, error message"

Hello, everyone.

I have very similar issue. But not with new installation, just .. error is the same :)

When I'm trying to login to my admin panel in WordPress, I receive the following error:

Warning: ini_set() has been disabled for security reasons in /home/domain_username/public_html/wp-includes/load.php on line 270

Warning: Cannot modify header information - headers already sent by (output started at /home/domain_username/public_html/wp-includes/load.php:270) in /home/domain_username/public_html/wp-includes/pluggable.php on line 881

What the heck should be wrong here?

wp-includes/load.php
Lines 260-281

function wp_debug_mode() {
	if ( WP_DEBUG ) {
		// E_DEPRECATED is a core PHP constant in PHP 5.3. Don't define this yourself.
		// The two statements are equivalent, just one is for 5.3+ and for less than 5.3.
		if ( defined( 'E_DEPRECATED' ) )
			error_reporting( E_ALL & ~E_DEPRECATED & ~E_STRICT );
		else
			error_reporting( E_ALL );

		if ( WP_DEBUG_DISPLAY )
			ini_set( 'display_errors', 1 );
		elseif ( null !== WP_DEBUG_DISPLAY )
			ini_set( 'display_errors', 0 );

		if ( WP_DEBUG_LOG ) {
			ini_set( 'log_errors', 1 );
			ini_set( 'error_log', WP_CONTENT_DIR . '/debug.log' );
		}
	} else {
		error_reporting( E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_ERROR | E_WARNING | E_PARSE | E_USER_ERROR | E_USER_WARNING | E_RECOVERABLE_ERROR );
	}
}

wp-includes/pluggable.php

Lines 867-883

function wp_redirect($location, $status = 302) {
	global $is_IIS;

	$location = apply_filters('wp_redirect', $location, $status);
	$status = apply_filters('wp_redirect_status', $status, $location);

	if ( !$location ) // allows the wp_redirect filter to cancel a redirect
		return false;

	$location = wp_sanitize_redirect($location);

	if ( !$is_IIS && php_sapi_name() != 'cgi-fcgi' )
		status_header($status); // This causes problems on IIS and some FastCGI setups

	header("Location: $location", true, $status);
}
endif;