Order will fail

[GoldRat]

I have 0.001 ETH (maybe less actually than displayed) on Wallet and 0.009 ETH on EtherDelta. I try to buy 0.06 PPT for 0.0010200000000000012 ETH using dotnet library, but TakeOrder throw exception "Order will fail". Why?

[GoldRat]

I place the same order manually without any problems. Why does it fail through API?