Problem: upload media and publicate post don't work!!

HI,
i have a problem.
i can’t publicate a post,
i can’t upload an image.
here: http://www.fastfashion.es/wp-admin/media-new.php –> it doesn’t upload the images.

here: http://www.fastfashion.es/wp-admin/post-new.php –> i can’t publicate, it gives me the option to “send to revision” , not to publicate.

I CANT DO ANYTHING! SO PLEASE, HELP!
thanks,
sara.