Thank you, let me try

Hello, I am new and try to learn how to build Scalping EA, the first ideal is RSI. simply up cross over 30 and 70 BUY, down cross over 30 and 70 SELL, but it doesn't open trade, anybody can give help that's be great! Thank you!
https://fxdreema.com/shared/pv0SL7Ume