I can't upload my Album from Iphoto to order it

I try to order the album of my wedding and can't upload it on the final step after having complete everything.

Is it too big ? what can be the issue ?

What happens when you try to upload the album? Are there any error messages?

Which iPhoto version are you using?

Are you ordering from the correct Print Products Store for your country? Check the settings in iPhoto > Preferences > Advanced: