Best posts made by Jusep Sobrino

Hello there nthung.
Just change ACCOUNT_FREEMARGIN to ACCOUNT_MARGIN_FREE, it is a predefined constant used by Metatrader. Be glad that the sistem gave you the answer itsefl. There are other cases where that dosent occurs like with POSITION_COMMISSION. However, i havent try this with a live account, still building my advisor and using it in demo account. Be aware of unpredictable flaws.
I hope the deprecated predefined constants will be updated by developers in fxdreema soon.