How to remove priceLine Tradingview lightweight

I try to remove priceLine from a chart. I'm using series.removePriceLine() but the line couldn't be removed. Below are my code:

var weekpivot= {
          price: price.poc.weekR2.val,
          color: price.poc.weekR2.color,
          lineWidth: lineWidth,
          lineStyle: LightweightCharts.LineStyle.Solid,
          axisLabelVisible: true,
          title: price.poc.weekR2.title,
    };
const weeklyPivot = candlestickSeries.createPriceLine(weekpivot);
if(condition){
candlestickSeries.removePriceLine(weeklyPivot);
}

thanks