JBolo 2.9 Beta 3 does not work

Fatal error: Call to a member function getSiteURL() on a non-object in /home/insofti/xxxx/public_html/administrator/components/com_jbolo/views/config/tmpl/config.php on line 8

Settings:
Joomla 1.7
Jomsocial 2.24
Language: Portuguese Brazil