Warning: Invalid argument supplied for foreach() in osmplayer_get_themes() (line 664

When I enabled the Open Standards Media Player after enabling MediaFront I got this Warning

Warning: Invalid argument supplied for foreach() in osmplayer_get_themes() (line 664 of /var/www/vhosts/bowlingtimes.co.uk/httpdocs/sites/all/modules/mediafront/players/osmplayer/osmplayer.module).

The line 664 is in the function

658function osmplayer_get_themes($base_path) {
659  $themes = array();
660  $path = getcwd() . '/' . $base_path . '/*';
661  foreach(glob($path, GLOB_ONLYDIR) as $dir) {
662    $name = basename($dir);
663    $theme_path = $base_path . '/' . $name;
664    foreach (glob($dir . '/*.css') as $css) {
665      $themes[$name] = array(
666        'url' => $theme_path . '/' . basename($css),
667        'options' => array('type' => 'file', 'group' => CSS_DEFAULT)
668      );
669      break;
670    }
671  }
672  return $themes;
673}

I am using Corolla 7.x-3.0-rc1 as my default theme.

Themes also enabled are:
AT Admin 7.x-3.1 : as my Administration theme.
Bartik 7.17
Interactive Media 7.x-3.2
Seven 7.17

Is this Warning going to affect the use of Mediafront and the Open Standards Media Player?

This is a fresh install of Drupal 7.17 installed on the 14th November 2012.