I have long been experiencing this same issue as well and from the looks it seems to be a general problem faced by some people here which is not our fault but however the admin is currently on it and a high reputable member have been notified to handle the situation which he is currently working on and I believe with time it would be fully be resolved so that members can be able to upload pictures as they like. Do not be worried, you can be able to upload your pictures when the issue is resolved.