In MetaTrader 4 EA running,what is the error 133 of OrderSend function?

[tiankong]

In MetaTrader 4 EA running,what is the error 133 of OrderSend function?

[Stuart Browne]

tiankong:
In MetaTrader 4 EA running,what is the error 133 of OrderSend function?

Trade is disabled. See here: https://book.mql4.com/appendix/errors