Highlight active Admin Menu when added though add_menu_page

add_filter( ‘parent_file’, ‘parent_file_hover’ ); function parent_file_hover( $parent_file ) { global $pagenow; if ( $pagenow == ‘post.php’) $parent_file = “post.php?post={$_REQUEST[‘post’]}&action=edit”; elseif($pagenow == ‘post-new.php’) $parent_file = “post-new.php?post_type={$_REQUEST[‘post_type’]}”; return $parent_file; }

WordPress Admin Page

Your Admin page should be available at: yourwebsite.com/wp-admin/ or yourwebsite.com/wp-login.php. Have you tried to enter the URL manually?

WordPress Admin Doesnt work

It sounds like you are missing a file from the WP ‘core’. Make a backup copy of your wp-settings.php file, then upload a freshly-downloaded copy of WordPress. Don’t upload the wp-settings.php file – that contains your database configuration. Your plugins and themes will still be there, as will your database.