Fatal error: require_once(): Failed opening required '/var/www/clients/client1/web48/web/sites/all/modules/...er.inc' (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/clients/client1/web48/web/includes/bootstrap.inc on line 2789


code in context:
// $type is either 'interface' or 'class', so we only need the first letter to
// keep the cache key unique.
$cache_key = $type[0] . $name;
if (isset($lookup_cache[$cache_key])) {
if ($lookup_cache[$cache_key]) {
require_once DRUPAL_ROOT . '/' . $lookup_cache[$cache_key];
}
return (bool) $lookup_cache[$cache_key];
}