Hi William,
I do not think this issue is related to your data; I was able to run Interpolate Points with your attached data without any errors.
Instead, the issue is almost certainly related to licensing. Interpolate Points requires an Advanced license for ArcGIS Enterprise in order to use the Geostatistical Analyst extension (which only comes with an Advanced license). If you have a Standard license, Interpolate Points will fail on execution, and this is probably what is happening for you. This will also happen for the Calculate Density tool because it requires the Spatial Analyst extension. Can you confirm which version of ArcGIS Enterprise you are using and your license level?
Starting in ArcGIS 10.6, Interpolate Points and Calculate Density will no longer appear in the tool list if you have a Standard license.
We apologize for the poor communication of this problem, but I hope this clears up why the tool is failing.