message: Change condition in Create Order form
diff: @@ -429,7 +429,7 @@ export default class AddOffer extends Component {
  const isDisabled = !exchangeRate
  || !buyAmount && !sellAmount
  - || +sellAmount > +balance
  + || BigNumber(sellAmount).isGreaterThan(balance)
  || BigNumber(sellAmount).isLessThan(minimalAmountSell)
  || BigNumber(buyAmount).isLessThan(minimalAmountBuy)
  