Error while uploading image using the imagedrop module

I am getting an error while i am trying to add an image using imagedrop module.

array(2) { ["edit"]=> array(5) { ["file"]=> string(11) "bottom1.gif" ["title"]=> string(3) "abd" ["taxonomy"]=> string(1) "1" ["description"]=> string(0) "" ["form_id"]=> string(21) "imagedrop_upload_form" } ["op"]=> string(6) "Upload" } string(21) "imagedrop_upload_form"

what would be the problem

regards
anshul