error importing inlet

[Mary Proteau]

I am trying to run a spatially small model just between two stations at the plot level. So I am trying to import inlet flow (first station) and in order to model the flow at the second station. 

When importing the csv for the daily inlet flow I get this error:

Traceback (most recent call last):
  File "swatplus_api.py", line 166, in <module>
  File "actions\import_export_data.py", line 57, in import_recall
  File "fileio\recall.py", line 49, in read_data
KeyError: 'ob_typ'
[PYI-12940:ERROR] Failed to execute script 'swatplus_api' due to unhandled exception!

Is it maybe expecting a different type of csv or data other than flow? Or specific naming of columns? 

Thank you!