FreePBX Distro stuck in "Create a free trial account"

Hi! When i open web interface of FreePBX, system show window of registration. In step 2 system show ERROR and nothing happening. All functions are disabled, i can’t do nothing.
Thank you.

amportal a ma uninstall sipstation
rm -rf /var/www/html/admin/modules/sipstation
/etc/init.d/httpd restart
And all work correctly. That’s feature of FreePbx- remove something, and it will work.
Thanks to community for help!