Friend if you look at the items from Argos are purchased with GPs, free items are only received to sign the other agreements if you have signed the gifts are finished.

regards

Hi Elias,

So, if I understand correctly its different then Stormfall as there are articles/scrolls till the end (dragons) and you have to buy only certain of them ... Right?

Regards,

Hello Archon. Yes this is normal and there is no bug. 

After you unlock Orchomenus, Stymphalos and Dion, you are not getting any new articles because you need to buy other articles by with GP's..

GPs Articles. Unlike other Plarium games, Tier III & Tier IV unit Articles must be purchased with GPs via the Market. Additionally you will purchase new units (such as the Denarii units) with GPs. GPs are not purchasable and must be earned through in game actions such as participation in Global Quests. Currently new Agreements require 4-8 Articles each at 25 GPs per Article. It will take a substantial investment of time and effort to unlock all units. All GP purchases are via the Market.

There is no bug here so Agent will (probably) move your post to Game Discussions.