Page Error after new install

This was a brand new install of the Pro 2.1.4 trail. After getting the message I’ve successfully installed cs-cart, I’m pulling up this error when visiting my site:

Warning: require(/home/ruc/public_html/core/db/mysqli.php) [function.require]: failed to open stream: Permission denied in /home/ruc/public_html/init.php on line 34

Fatal error: require() [function.require]: Failed opening required ‘/home/ruc/public_html/core/db/mysqli.php’ (include_path=‘/home/ruc/public_html/lib/pear/.:/usr/lib/php:/usr/local/lib/php’) in /home/ruc/public_html/init.php on line 34

It’s coming up on both the front and back end. What am I missing?

What are the permissions for the file /home/ruc/public_html/core/db/mysqli.php?

It’s set to 0000 and I updated that to 755. Thanks for the catch! I got a page now on my domain, but new issue: when I finished the install, I thought it was weird that there was no forward slash between my domain name and public_html/index.php or before the admin address. I tired entering one where it should be, but those pages do not exist.