Database error unexpected!!

Hello,
I need help please,
Today my Blog http://www.infogestores.cl present this problem:

<!!– WordPress database error: [Can’t create/write to file ‘/tmp/#sql_3ada_0.MYD’ (Errcode: 17)]
SELECT DISTINCT * FROM wp_posts WHERE 1=1 AND post_date_gmt <= ‘2005-10-24 15:52:59’ AND (post_status = “publish”) GROUP BY wp_posts.ID ORDER BY post_date DESC LIMIT 0, 4—!!>

I didnt maked anything in the Blog and i dont know what is the error cause.

Thanks for your help !!

Jaime
http://www.infogestores.cl
Chile