Websites crashed from theme spirit

was working a week ago. went on vacation. today this

31-Mar-2016 21:02:11 UTC] PHP Warning: include_once(/mnt/target05/924425/www.bettereyesightatanyage.com/web/content/wp-content/themes/upfront/library/class_upfront_server.php): failed to open stream: No such file or directory in /mnt/target05/924425/www.bettereyesightatanyage.com/web/content/wp-content/themes/uf-spirit/functions.php on line 5