EMA script related query

Hi, I’ve been trying the following script:

Sell Script:
SET MA1 = ExponentialMovingAverage(CLOSE, 20)
SET MA2 = ExponentialMovingAverage(CLOSE, 05)
CROSSOVER(MA1, MA2) = TRUE

Exit Short:
SET MA1 = ExponentialMovingAverage(CLOSE, 20)
SET MA2 = ExponentialMovingAverage(CLOSE, 05)
CROSSOVER(MA2, MA1) = TRUE

However, while back testing, it says : “No results. Make sure at least Buy & Sell signals are typed in”
I’m unable to identify the error in the script. Would appreciate help in this regard.

Thank you

As per the above condition

Buy Script:

CROSSOVER(EMA(CLOSE,20),EMA(CLOSE,5))

Sell Script:

CROSSOVER(EMA(CLOSE,5),EMA(CLOSE,20))