Good morning,

I wrote the following code for an exploration

top:= CLOSE = HHV(CLOSE,21) AND
Fml("DMI Spread") > 15;

setup:=
CLOSE < HHV(CLOSE,21)
AND
Alert(top,11)
AND
Fml("DMI Spread") = LLV(Fml("DMI Spread"),11);

Alert(setup,6)
AND
Fml( "ENTRY LONG")
AND
CLOSE > Mov(CLOSE,55,E)

but I obtain the following error for the entire group of securities

Security Name Reason for Rejection Location
Error in column C: Invalid time period (zero or negative) passed to HHV() function.

What is the problem?

Thank you