ea doesn't open trades


i used an ea that worked perfectly on the test but when i try it on the chart it send this error message

2021.07.22 14:50:36.342    Wall Street Original MT5 (EURUSD,D1)    Error open order: SELL 0.00 Strategy2-1

William Roeder
William Roeder  

Do you really expect an answer? There are no mind readers here and our crystal balls are cracked. Always post all relevant code (using Code button) or attach the file.
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We can't see your broken code.

Fix your broken code.

With the information you've provided — we can only guess. And you haven't provided any useful information for that.