Problem with Image (showing only if i refresh the page)

Hey guys, i got follwing problem:
First, you go on my website : https://www.reisehits.net/

Then you click on anypost, for ex: https://www.reisehits.net/turkei-side-alanya-sentido-perissia-side-7-tage-mit-flug-dzai-p-p-ab-e-479/

Then, you SHOULD NOT see the stars, under “Kategorie”

If you go back to the Homepage and then go again into the post, you should see the stars under “Kategorie”.

I am not sure if it is because of cacheing or something else.
please help (:

sincerly,

Philip