Secondary aggregation not allowed in scans

Hello, I have created a script that alerts for any stock price getting close to previous day’s close. it work as far as I ave tested. However when I convert it to study I cannot use it for  Aggregate Period 5 min. I can only use for aggregate Period Day. The error I get is Secondary Period not allowed: Day

Any help would be greatly appreciated

code for Study

def MarketOpenTime = 930;
def aggregationPeriod = AggregationPeriod.DAY;
def length = 1;
def displace = -1;
def showOnlyLastPeriod = yes;
def prevDayClose;
def HOD = high(period = AggregationPeriod.DAY);
if showOnlyLastPeriod and !IsNaN(close(period = aggregationPeriod)[-1]) {
prevDayClose = Double.NaN;
} else {
prevDayClose = Highest(close(period = aggregationPeriod)[-displace], length);
}
plot reachingClose = SecondsFromTime(MarketOpenTime) > 1 and low > prevDayClose and low <= prevDayClose + (prevDayClose * 0.3 / 100) ;
reachingClose.SetDefaultColor(Color.GREEN);
reachingClose.SetPaintingStrategy(PaintingStrategy.BOOLEAN_ARROW_UP);

def SoundAlert = reachingClose and close[-1] <> reachingClose;
Alert(SoundAlert, “Price Reaching Previous Close of Day” + GetSymbol(), Alert.ONCE, Sound.Ding);
#AddLabel(yes, close crosses prevDayClose or close equals prevDayClose, Color.RED);
#AddLabel(yes, prevDayClose, Color.BLUE);
#AddLabel(yes, prevDayClose + (prevDayClose * 0.3 / 100), Color.PINK);
#AddLabel(yes, prevDayClose – (prevDayClose * 0.3 / 100), Color.PINK);