Error message

Warning: file_get_contents(https://th-m.iliveok.com/sites/default/files/advagg_css/css__prl-BytWHpJtBG4Voj2WsqdI8dCsGHH-099ncnKATj8__ox-rTTpE5_z2CZHflRa5n58w_1lu-c4gEWdCoPNL2eQ__70gfr9_25KUxe_BqSWWsCHPicvku1w-GJh056RkbQwQ.css): failed to open stream: Connection refused in include() (line 56 of /var/www/site/ilive.com.ua/sites/all/themes/ilive_mobile/template/html.tpl.php).