pivotDatawidget question: Can not get result table in production environment, it shows No constructor found for widget PivotDataWidget

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Dears,   Does any friend knows why the widget PivotDataWidget can not show the result pivottable?   Situation: I have an entity ”OppoMD_Show”  with many attributes, like FiscalMonth(12 months), Region and WeightedOrderIntake (it means money amount). I want to get a summary table which can get the sum of WeightedOrderIntake for every FiscalMonth and every Region. It’s quite easy in excel where we can get a pivot table, just put Region in row and FiscalMonth in column, sum the WeightedOrderIntake (like screenshot below).     So I found a widget in marketplace named:PivotDataWidget, it seems good to get the same summary table like excel pivot table as above.   I configured the widget: - Step1: I put the widget in a data grid with entity”OppoMD_Show” I just mentioned, and also with page parameter as required.( I think this step is ok) - Step2: I configured the widget. Choosed an entity, call value attribute, call value action, call data microflow (here I created a mf which retrieve the specific department rows that I want to calculate, quite simple, just with an easy Xpath constraint), choose one for “When to call get data mf”,choose X axis value and Y axis value…… Question: The summary table appears in develop view as below (url:localhost……).  BUT in official prod environment after deployment, it just shows "No constructor found for widget PivotDataWidget' whichever I choosed any option in “When to call get data mf”. I think the problem happened in “When to call get data mf”, but I don’t know how exactly it comes like this.       Any kind friend can solve this problem? Really apprecate!
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