Fix Disk Permissions
From Lunarpages Web Hosting Wiki
Lunarpages believes in providing you with all the tools you need to keep your web site in operational order. With that said, the Fix Disk Permissions tool will help you get your files back in order.
You can access this special tool, by clicking on the Fix Disk Permissions link in your LPCP left sidebar.
Once you click the button labeled "Fix Permissions", the tool will reset your permissions to the way they should be. This means that folders will be reset to the permission level 755 and the PHP files in your account (files that end with the .php extension) will be reset to the permission level 644.
This should be a more than helpful tool to help you with your web site troubleshooting.