Hello, i want to sell my pics but when i try to sign up as seller.

when i arrive at these step:

So you're selling your images on Fotolia.

Let's get your account synced!

i put my adobe id and pass, appears these message

Your credentials could not be authenticated. Please try again.

I don't understand what's happend because i go to the https://www.fotolia.com/Member/Profile then i put my id and it works.

Please help me.

thanks.