Database Connection error:

I am getting this error and can't seem to connect to the MS Access database. I'm using:

MICROSOFT OFFICE 365
ACCESS 2016 MSO (16.0.6965.2053) 32-bit

The error states: Unrecognized database format'C:\Users\Monica Reynolds\Documents\Call Tracker\NewTrackerDB.accdb'

How do I connect to an Access DB?