Hi my site keeps breaking. I've re-installed the site twice and in tow different placed and I keep getting this error after about half an hour after installation.

Warning: require(/home/revived/public_html/concrete/config/base_pre.php) [function.require]: failed to open stream: No such file or directory in /home/revived/public_html/concrete/dispatcher.php on line 14

Fatal error: require() [function.require]: Failed opening required '/home/revived/public_html/concrete/config/base_pre.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/revived/public_html/concrete/dispatcher.php on line 14

Any ideas? I'm running C5 version 5.6.0.2