Warning: require_once(//wp-admin/includes/class-wp-list-table.php) [function.require-once]: failed to open stream: No such file or directory in /wp-content/themes/a2template/library/class-tgm-plugin-activation.php on line 1962

Fatal error: require_once() [function.require]: Failed opening required '//wp-admin/includes/class-wp-list-table.php' (include_path='.:/:/usr/local/php53/lib/pear') in /wp-content/themes/a2template/library/class-tgm-plugin-activation.php on line 1962