Buy signal when CLOSE is below BBB and RSI below 30 with in positive slope

Algos, strategies, code
1

my code is giving error

SET A=RSI(CLOSE,14)

CLOSE<=BBB(CLOSE,20,2,EXPONENTIAL) AND SLOPE(A)>=0.2

2

NaMasTe TraDeR,

SCRIPT:

SLOPE(RSI(CLOSE,14),3) >= 0.2 AND 
CLOSE <= BBB(CLOSE,20,2,EXPONENTIAL)