automated whmcs install fails

etc-md.com server. I try to run the automated install and i get: Found http://software.virtualmin.com:80/download/whmcs_v631.zip in cache .. Found http://downloads2.ioncube.com:80/loader_downloads/ioncube_loaders_lin_x8... in cache ..

Configuring webserver PHP settings .. .. already done. Applying web server configuration .. .. done

Now installing WHMCS version 6.3.1 .. Account creation did not succeed More information on using this script can be found at http://www.whmcs.com/members/aff.php?aff=4115.

.. installation was only partially complete. Re-loading Webmin .. .. done

Applying web server configuration .. .. done