語法錯誤或bug

小幫手好

請看下影片，看看到底是哪的錯誤，謝謝

https://drive.google.com/file/d/1GzzOyy0k1ri7sIwvV5lGxnlvTLWYg14q/view?usp=sharing

input: mavperiod(60,"收盤大於幾個月均線"),mperiod(3,"連續幾月均線上揚");

condition1 = close cross over average(close,mavperiod);

condition2 = average(close,mavperiod) > average(close,mperiod)[1]
                    and average(close,mavperiod)[1] > average(close,mperiod)[2]
                    and average(close,mavperiod)[2] > average(close,mperiod)[3];

//condition2 = average(close, 60)[0] > average(close, 60)[1]
//          and average(close, 60)[1] > average(close, 60)[2]
//          and average(close, 60)[2] > average(close, 60)[3];

if condition1 and condition2 then plot1(close, "收盤價");

plot2(average(close,mavperiod),"均線");