Thumpnails in Backend isn't shown.

[webogshop]

Just updated to latest version of Phoca Gallery.
Still no thumpnail in backend..

https://gyazo.com/85060a1a994ab4135ca27cfb99149743

How can I regenerate these images? I allready regenerated all the images from the "Recreate thumpnails" button..

[Jan]

Hi, what is the html code of the image (click on the image and click right button to run "inspect element" command). Is the path to the image right?

Jan