Cannot map model input data to my calculations while using predictive analysis model

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Hi Team,

            As we have customized some rows and used a predictive analysis algorithm on a column resulting into a machine learning model, we are trying to create a scenario using the resultant machine learning model on a particular canvas in a project. We are seeing that we could not map the model input attributes to my calculation formulas. As there are two calculations created : (i)Calc_month_posted (ii) calc_year_posted  and we are trying to map these with Posted Month and Posted Year attributes, when we are searching for the formulas, it's producing an error for which the screenshot has been uploaded.