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Optimal Auto Lot Size Calculation Function works fine in Scripts but not works when used inside a Expert Advisor ? Why is this happening ? Pl. help..

Hi, An Auto Lot Size Calculation Function is working fine in scripts I checked using Alert function it is returning actual values in rounded format for Lot sizes. But When I am using it inside an EA it is returning 0 value and Error 4051 "invalid function parameter" pl guide where i am wrong