‘Trade Context is Busy’ is a common MetaTrader 4 error, the error occurs because MetaTrader 4 cannot process multiple requests at the same time, to fix this error simply close and open your MetaTrader 4 trading platform again.

This can happen when you have given your trading platform an additional instruction before it has completed an earlier task. This can happen in cases where there have been multiple mouse clicks or a hyperactive Expert Advisor.

The trading platform time cannot be changed.

For positions that are open on Wednesday and held overnight to Thursday, the amount added or subtracted to an account as a result of rolling over a position (swap) is three times the usual amount. Charging or paying 'triple swaps' for Wednesday-to-Thursday roll-over accounts for the settlement of trades through the weekend, as swap rates are not charged during this period due to the market being closed.

Go to the market watch area, right click and choose symbols. Click on the properties for a trading symbol and it will give you all details including the swap rates.

Check the Experts tab in the Terminal. If the EA is trying to place trades without success it will show an error number.