I'm getting an error whenever I try to run a python script outside of ArcGIS Pro that executes geoprocessing tools that I made. The purpose of the tools is to ETL data from outside databases into my GIS database. I created python scripts using arcpy.ImportToolbox to run these tools so that I can schedule them to run overnight automatically, based on this article. The individual commands all ran fine using the Python window in ArcGIS Pro, but I keep getting the error in the attached screenshot.
I ensured that I'm using the correct Python shell , 3.6.4, located in the ArcGIS Pro folder. I was thinking that the problem may be because my model pulls data from other database connections, but I'm not sure. If anyone can help me with this I would greatly appreciate it.