placing order with my EA , order got cancel showing the error of mql4 error 4000 on terminal < expert

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Hey everyone ,
i'm facing the issue with one of my MT4 account which is connected with HFMarkets broker , in this account i'm using my same EA which i'm using for another MT4 account(Oanda broker).
on my HFMarkets Account i'm facing the issue with order got cancel and giving us error of mql4 error 4000(which means no error) . Most of the time it got cancel but few times it places.
i'm also checking and testing my EA with strategy tester over MT4 , when i'm doing my strategy testing of my EA with HFMarkets broker it did not show us the real data but when i test the same EA with
Oanda broker it show the real data.
i'm attaching the screenshot of order cancel with error on mt4