i was writing my expert for many days maybe weeks, i'm using mt4, today i was testing and modify it, when i run strategy tester this time it's not running .
i was tired actuality so i said i will check it later and colsed everything, now when i open it, it was blank no codes no anything but the size it same no changes
so i sure the codes is still in the file but i don't know what is it. any one meet this ghost before. any help plz .