Obviously there is an error in you code try checking MODE_MINLOT and MODE_LOTSTEP to make sure that your trade volume meets the requirements.
If you have this error while you are trying to publish a market product, i worry about the quality of the product.
Forum on trading, automated trading systems and testing trading strategies
Error during validation the EA for sale
Yaseen Al Hashem, 2017.06.15 16:10
It is in comment section of your product's page (I see this section on the image on the first post of the thread).if it will not help so write to the service desk.