Error received - "Invalid response (expecting SEXP)" when attempting time series forecasting

I am able to do a time series forecast on my data set when the I am only using a small subset of entities. However, when I increase the scope of the forecast to include more entities, I receive this error:

Error received - “Invalid response (expecting SEXP)”

I’m using the default settings and attempting to forecast one metric on a daily basis a year out.

Thank you!

Hi Matt,
I think I will need to look into your log file.
I will contact you with email.