Bonjour !!

I was registered on the site , but I do not manage to download my images! An error message appears:
"" Security Error
You have attempted to perform an action that is not permitted. This may have happened for several reasons:

You have bookmarked a logged-in page and then tried to use the bookmark. You cannot do this; you must always use your key to log in to the contest site.
An error in the contest web site is preventing you from doing what you should be allowed to do. In this case, we will fix the problem. ""

Could somebody help me ? Thank you very much !