Error when try to create siteworx account

I just the first user and i start with the fresh installation on my vps. And after i try to create the first of my domain in siteworx account and this is what i get
» There was a problem validating the form. Please see details below.
» An error occurred during SiteWorx account activation, check the iworx.log file for more details
I try to see in log. what the problem i receive but i don't understand.

2014-02-01 10:56:06.81418 [nosess-gukz-ywcu-CLI] [INFO] : script end : problem-detector.php
2014-02-01 10:57:18.06931 [pywot8-7k67-po4q-WEB] [INFO] : 114.134.185.30 routing: Ctrl_Nodeworx_Logs -> downloadCommit : /nodeworx/logs
2014-02-01 10:57:23.84558 [pywot8-q7lq-874a-WEB] [INFO] : 114.134.185.30 routing: Ctrl_Nodeworx_Logs -> index : /nodeworx/logs
2014-02-01 10:57:23.85998 [pywot8-q7lq-874a-WEB] [INFO] : 114.134.185.30 routing: Ctrl_Nodeworx_Logs -> view : /nodeworx/logs
2014-02-01 10:57:26.22034 [pywot8-ih71-qif7-WEB] [INFO] : 114.134.185.30 routing: Ctrl_Nodeworx_Logs -> view : /nodeworx/logs