Hi Esteban Morales,

I am sorry for the delay of this reply.

Regarding your issue, look like there is a missing '<' in one of the language string from your language file 'JOOMLA/languages/es-ES/es-ES.com_easysocial.ini' at line 2448. Please see http://screencast.com/t/gaGYGza8

I've fixed the issue from your site and now the link from the toolbar search is working correctly.
Please verify again.

Hope this help and have a nice day