error with the admin panel just after installation

Hi :)

On a fresh new install of elgg, I got that message on the admin page, error that made that panel unsuable. Any help welcome.

Thanks
D

An exception occurred while executing 'SELECT DISTINCT e.*, COUNT(*) as cnt FROM elgg_entities e WHERE (e.site_guid IN (1)) AND ((1 = 1) AND (e.enabled = 'yes')) GROUP BY e.type, e.subtype ORDER BY cnt DESC':