Possible reasons for this error message include:
The specified Stop Loss or Take Profit price is incorrect. Please make sure of the following:
When you enter into a Buy position, Stop Loss price is set lower and Take Profit price is set higher than the current market price.
When you enter into a Sell position, Stop Loss price is set higher and Take Profit is set lower than the current market price.
If point 1 is correct, please ensure that the distance from current market price is not within the Limit and Stop Levels.