The selected file /tmp/fileKKqaeG could not be uploaded, because the destination sites/default/files/css/css_a91cd284035e73ba34d112bfed2f5a16.css is not properly configured.
  The selected file /tmp/filemEwHgY could not be uploaded, because the destination sites/default/files/css/css_de1aa27776f1462d2b0d83a80ce4b92d.css is not properly configured.

Type the length of the Field in em units (in the configuration that WorkXpress uses, 1 em = 8 pixels).

Type the height of the Field in em units (in the configuration that WorkXpress uses, 1 em = 8 pixels).