In the rule Trade, change

Trading may only be performed by a Settler if they can indicate a blog post or comment made since the most recent Production of Resources where the other Settler whose Stockpile would be altered has explicitly agreed to this, specifying the items traded.

to

Trading may only be performed by a Settler if they can indicate a blog post or comment, made by the target Settler with whose Stockpile they intend to Trade, since the most recent Production of Resources, where that target Settler has explicitly agreed to this, specifying the items traded.