iFarmer "No Units Selected"

[TW4U]

I'm starting to get a lot of these randomly from iFarmer. Any ideas or suggestions? I definitely have available troops to farm with.

[DateTime] → → → Intelligent Farmer - [myVillage]. Farmed village disabled - Barbarian village [Target]. Can not confirm send army. Error message: - No units selected. BotMessage id: 127

[ttim]

how many troops do you send?