Then you cannot send what you don't have, when you get smithy up to a certain level, you can research other units, which you will then be able to recruit and use
Your paladin also takes 6 hours to train, so that might be it also.
All villages produce resources, the differences are:
Bonus village: The bonus is shown in the village description
Barbarian village: Villages that other players have abandoned, the resources produced are different in each one, depending on the level of buildings within it
Normal village: These produce whatever the player has built up
That's the role of this section of the forums and I believe that it should be promoted more so new players can come here to ask whatever questions that they have.