Plugin shows 0 stats (seems random)

Hi,

I’m trying to figure out why the plugin shows 0 views on seemingly random basis.

Two of the affected articles:
http://citysavvyluxembourg.com/lifestyle/travel/new-years-resolutions-101/
http://citysavvyluxembourg.com/lifestyle/wellbeing/counselling/kanner-jugend-telefon-listening-ear-virtual-confidant-teens/

Both articles have comments, so it’s impossible they have 0 views.

Most of the other articles have normal stats.

The page I need help with: [log in to see the link]