Warning: Unknown: failed to open stream: No such file or directory in Unknown on line 0

Fatal error: Unknown: Failed opening required 'I:/openserver/OpenServer/domains/old.adm-essentuki.ru/city/Стратегическое планирование/index.php' (include_path='.;i:/openserver/openserver/modules/php/PHP-5.4;i:/openserver/openserver/modules/php/PHP-5.4/PEAR/pear') in Unknown on line 0