Off-quotes can appear on MT4 if the market price moves negatively beyond the price you specified in the max deviation setting and your order cancels. What I would suggest is increasing the maximum deviation to either 10 or 20. This would allow you 1.0 or 2.0 pips of flexibility in case the market price has changed by the time your order has been received for execution. If the market price has moved beyond that amount, the order will be rejected with the Off-Quote message.
Let me know if you have any questions and good luck in the contest.
Nevertheless the account is still disable for no reason. fxcm let trade whoever they want to and block all the others and I am waiting for an explanation I haven't had yet. This is how serious they are.