Installed but will not open install.php

[Chronic]

Hello, I followed the setup per the install instructions. I am using a VPS I created on Digital Ocean. All is well until I attempt to navigate to the install (install.php). I am using chrome and it gives me the Server Error, error code 500. I did a chmod 755 to all dirs and a 644 for all files. Any ideas as to why it is not working?