Groups: Cannot access any groups. Velocity error.

1. Go to http://next.dev.curriki.org/xwiki/bin/view/MyCurriki/Groups
2. Select any group, e.g., http://next.dev.curriki.org/xwiki/bin/view/Group_CurrikiLeadersGroup/

Bug
Error number 4001 in 4: Error while parsing velocity page Group_CurrikiLeadersGroup.WebHome Wrapped Exception: Failed to evaluate content with id Web Home
Error number 4001 in 4: Error while parsing velocity page Group_CurrikiLeadersGroup.WebHome
Wrapped Exception: Failed to evaluate content with id Web Home
com.xpn.xwiki.XWikiException: Error number 4001 in 4: Error while parsing velocity page Group_CurrikiLeadersGroup.WebHome
Wrapped Exception: Failed to evaluate content with id Web Home
at com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRenderer.java:112)
at com.xpn.xwiki.render.XWikiVelocityRenderer.render(XWikiVelocityRenderer.java:87)
at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWikiRenderingEngine.java:272)
at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWikiRenderingEngine.java:202)
at com.xpn.xwiki.XWiki.include(XWiki.java:3621)
at com.xpn.xwiki.api.XWiki.includeForm(XWiki.java:1372)
at com.xpn.xwiki.api.XWiki.includeForm(XWiki.java:1338)
at sun.reflect.GeneratedMethodAccessor1732.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)