Lookback error? (noob alert)

function CheckRSI() 
{
	TimeFrame = 1; //multiplier for BarPeriod, set BarPeriod = 1 then set TimeFrame = x for different timeframes of the same function
	vars Close = series(priceClose()); //sets up a price series based on the current asset/TimeFrame (used for indi)
	//vars RSIsignal = series(RSI(Close, optimize(14,2,34,2))); 
	vars RSIsignal = series(RSI(Close, 14)); //create the indicator series (period can be optimised later)
	//var RSIthreshHigh = optimize(75,55,100,5); 
	var RSIthreshHigh = 75; //set an upper threshold (can be optimised later)
	//var RSIthreshLow = optimize(25,0,45,5); 
	var RSIthreshLow = 25; //set an lower threshold (can be optimised later)
	
	//trade decision
	if(crossOver(RSIsignal, RSIthreshLow))
		reverseShort(1); //close short trades and open a long position
	if(crossUnder(RSIsignal, RSIthreshHigh))
		reverseLong(1); //close long trades and open a short position	
}

//~equivalent to MQL4 OnTick()
function run()
{
	//set(PARAMETERS);  // generate and use optimized parameters
	BarPeriod = 60;
	LookBack = 34; //set to the worst case scenario, RSI period is 14 so this is easy for now
	StartDate = 2010;
	EndDate = 2015;
	//NumWFOCycles = 10; // activate WFO
	
	//carry out trade decisions/operations
	CheckRSI();	
	
	//plot the results
	set(LOGFILE);
	//PlotWidth = 600;
	//PlotHeight1 = 300;
	plot("Signal",series(RSI(series(priceClose()), 14)),NEW,RED);
	plot("Threshold1",75,0,BLACK);
	plot("Threshold2",25,0,BLACK);
	set(PLOTNOW);
}

basketWorkup compiling..........
Lookback set to 55 bars
Test: basketWorkup AUD/CAD 2010..2015
Error 014: Function RSI Timeperiod 54 > LookBack 34!
Error 014: Function RSI Timeperiod 54 > LookBack 34!
Error 030 - Check lookback, settings, asset order
Chart...Error 047: No bars to plot! ok

Error 014: Function RSI Timeperiod 54 > LookBack 34!