Warning: require_once(assets/core.php): failed to open stream: No such file or directory in /usr/home/wildsea.eu/web/index.php on line 2

Fatal error: require_once(): Failed opening required 'assets/core.php' (include_path='.:/home/sys/phpfarm/inst/php56/pear/php/') in /usr/home/wildsea.eu/web/index.php on line 2