Blank nodeworx after clean install

Today installed a new (xen) vps with interworx and so far seems to go ok… except one thing…

After license is installed, we attempt to logon the web-interface for the first time to set DNS settings etc… but, after the Nodeworx login window, the next one is blank

source displayes only:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<META http-equiv=Content-Type content="text/html; charset=windows-1252"></HEAD>

On url <ip>:2080/nodeworx/nodeworx.php

How to get past the blank window ?

Thanks to Paul from the support team that fixed the problem!

/dev/null was mistakenly setup with 600 permissions instead of 666 when the VPS was created.