Date Filter Error

I have the same exact problem. 

The behaviour I noticed is: When I control the end date, it is absolutely fine, but the issue appears only when I control the start date. 

The error I see on the visual is: Error fetching data for this visual see details. and when I click on see details I find out a non-helpful message: An unexpected error occurred (file", line, function "). date filter

This is really annoying and caused my complete work to stop!!!>