im getting this error on a doulble query from mysql database:

IError

SQL-query: Documentation

SELECT w.wallpaper_id, w.wallpaper_url, c.wall_category_name
FROM wallpaper w, category c
WHERE w.status = 'L'
ORDER BY w.wallpaper_views DESC
LIMIT 0 , 12

MySQL said: Documentation
#1267 - Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation '='