No Input File Specified
On some hosts (like Godaddy) you may see the error "No Input File Specified".
To fix, create a file called php.ini on your server in the root folder of your domain name if it doesn't already exist. Within that file, add this line:
cgi.fix_pathinfo = 1;
It may take some time for the change to be noticed by your server, so leave it for an hour before sending further requests for help if the issue is not resolved.