/home/fotomias/www/app/webroot//files/x//6369. isn't a valid image

  FILE: /home/fotomias/www/cake/libs/object.php
  LINE: 121

    FILE: /home/fotomias/www/cake/dispatcher.php
    LINE: 227

      FILE: /home/fotomias/www/cake/dispatcher.php
      LINE: 194

        FILE: /home/fotomias/www/app/webroot/index.php
        LINE: 90

          FILE: /home/fotomias/www/app/controllers/files/xfiles_controller.php
          LINE: 382

            FILE: /home/fotomias/www/app/controllers/components/images.php
            LINE: 248