Why does this happen?
When this error appears on the MetaTrader platform, it is primarily because your trading volume has exceeded the limits set by the broker. Here are some possible examples:
Depending on the account type and the time of day, AFT imposes a limit on the volume per trade for certain instruments.
The order size that your Expert Advisor (EA) attempted to open may have exceeded the volume limits for your current account type or the instrument being traded.
You manually placed a pending order, but at the moment it was about to execute, the required volume may have exceeded the limit. For example, you set a 100-lot trade on an instrument at night when the price reached the desired level, but the volume limit at that time was 60 lots.
How to resolve this issue?
To avoid this situation, please ensure that your orders are placed within the limits set by AFT and adjust your EA settings accordingly. You can view the limits for each instrument in the contract specifications within your trading terminal.
If the issue persists, please create a request in the customer support center for further assistance.