using facebook Prophet + pyspark for forecasting - Dataframe has less than 2 non-NaN rows

Hello - Anyone used Prophet + pyspark for forecasting ? I'm trying to backfill forecasts, and running into issues (error - Dataframe has less than 2 non-NaN rows) I'm removing all records with NaN values, yet getting this error. details are in stackoverflow link ->

Seeking Guidance on Spark on Kubernetes Secrets Configuration

Dear Spark Community Members, I trust this message finds you all in good health and spirits. I'm reaching out to the collective expertise of this esteemed community with a query regarding Spark on Kubernetes. As a newcomer, I have always admired the depth and breadth of knowledge shared within