As I said, this error can be caused by several things. Other common cause is when you set "TRADING_LIMIT", "Min_volume_to_buy" or "Min_volume_to_sell" below the minimum tradeable amount.
For example, if the minimum tradeable amount is 0.001 btc and you set "TRADING_LIMIT" to 0.0005, you will get this error.
Other example: You set "TRADING_LIMIT" to 0.20 and you add the following pairs: "BTC-LTC" and "USDT-ETH"
You will get errors in the second pair. Why? Because 0.20 USD doesn't reach the minimum tradeable amount (trading_limit amount is stated in your base coin).
In the case you still get issues, your best bet is contact directly with your reseller. He should be able to take a deep look into your settings and find the issue in your case.