bbPress.org

I have installed BBpress and BBpres Admin.

When I am trying to access BBpress Theme under Appereance an error occur:

Warning: require_once(C:\xampp\htdocs\WP//forums/bb-admin/admin-functions.php): failed to open stream: No such file or directory in C:\xampp\htdocs\WP\wp-content\plugins\bbpress-admin\bbpress-theme-admin.php on line 86

Fatal error: require_once(): Failed opening required ‘C:\xampp\htdocs\WP//forums/bb-admin/admin-functions.php’ (include_path=’.;C:\xampp\php\PEAR’) in C:\xampp\htdocs\WP\wp-content\plugins\bbpress-admin\bbpress-theme-admin.php on line 86

Inside bbpress-theme-admin.php in line 86 is this:
require_once(ABSPATH.’/forums/bb-admin/admin-functions.php’);

Also when I am trying to access BBpres Options under Settings an error occur:
Notice: Undefined index: action in C:\xampp\htdocs\WP\wp-content\plugins\bbpress-admin\bbpress-options-admin.php on line 9

In line 9 in bbpress-options-admin.php is this:
if ($_POST[‘action’] == ‘update’) {

Pleade can anyone help me. I would really like to change BBpress theme or if is there some other way to change the theme.

tnx