to activate the plugin jomsef gives this error message.
I hope your help. thanks

no valid database connection Unknown column 'filters' in 'field list' SQL=SELECT `filters` FROM `jos_sefexts` WHERE `file` = 'com_sobi2.xml' LIMIT 1

Artiodáctilos JoomSEF
Versión: 3.8.2
and sobi2

PHP funcionando con: Linux cp25.webempresa.eu 2.6.34.6-xxxx-grs-ipv6-64 #3 SMP Fri Sep 17 16:06:38 UTC 2010 x86_64
Versión de la base de datos: 5.0.92-community
Cotejamiento(collation): utf8_general_ci
Versión de PHP: 5.2.16
Servidor web: Apache
Interfaz PHP del servidor: cgi
Versión de Joomla!: Joomla! 1.5.20 Stable [ senu takaa ] 18-July-2010 18:00 GMT

been solved manually by deleting mysql tables which had installed sh404 before and reuisnstalando the Jommace, now works.
Greetings