Hello good people.

I uploaded a remake of a website so the site owner could take a look.
I made a folder inside the current site, uploaded the new site to this folder, made a backup of the database, created a new database, imported the backup and linked to it in config/site.php

This has worked fine before, but now I get error messages:

Warning: require(/hsphere/local/home/c350498/cellista.no/ny/concrete/startup/config_check.php): failed to open stream: No such file or directory in /hsphere/local/home/c350498/cellista.no/ny/concrete/dispatcher.php on line 22 Fatal error: require(): Failed opening required '/hsphere/local/home/c350498/cellista.no/ny/concrete/startup/config_check.php' (include_path='.:/hsphere/shared/apache/libexec/php5ext/php/') in /hsphere/local/home/c350498/cellista.no/ny/concrete/dispatcher.php on line 22

Not sure what to do. Is something missing? I have checked permissions on the files mentioned. They seem fine

The URL is:http://www.cellista.no/ny/