指標出現"計算中止，請檢查腳本算式是否有分母為零"

以下面腳本做指標，在某些股票，會出現

"計算中止，請檢查腳本算式是否有分母為零"，然後指標不出現

有這些狀態的股票如2743山富，4911德英，3611世芯-KY，4147中裕

請小幫手幫忙看一下腳本有那裡沒考慮到?

value1 =getfield("月營收","M")*100;

value2 =Average(getfield("月營收","M"),3)*100;

value3 =Average(getfield("月營收","M"),6)*100;

value4 =average(getfield("月營收","M"),12)*100;

value5 =getfield("月營收","M")[12]*100;

value6 =average(getfield("月營收","M")[12],3)*100;

value7 =average(getfield("月營收","M")[12],6)*100;

value8 =average(getfield("月營收","M")[12],12)*100;

value11=(value1/value5-1)*100;

value12=(value2/value6-1)*100;

value13=(value3/value7-1)*100;

value14=(value4/value8-1)*100;

plot1(value11,"月年增");

plot2(value12,"三個月年增");

plot3(value13,"六個月年增");;

plot4(value14,"十二個月年增");